Onimai: I'm Now Your Sister! (2023–…): Season 1, Episode 1 - Mahiro's Confusing New Body - full transcript
It's almost noon already?
Did I catch a cold or something?
My body feels kind of sluggish.
Were my hands this small?
Everything seems so weird.
And my head feels strangely heavy.
What?!
Wait, calm down.
I'm Mahiro Oyama, an aloof shut-in
who loves erotic video games.
I'm a full-grown man, or so I thought.
B-But now, I look just like...
a girl!
I-I've got to check.
I just need to confirm something...
Good morning, Big brother!
No! I haven't...
No, I mean... I...
I see...
What?
Good, it appears to be a success.
In any case, you turned out pretty cute.
You should be around
middle-school age, I presume.
M-Mihari...
You drugged me, didn't you?
I slipped a little something
into your drink.
H-How could you?
I'm not your experiment subject!
What do you take your big brother for?
A useless, shut-in NEET.
NEET
You haven't left the house for two years.
You live a disorganized life.
SHUT-IN
On top of that,
you play indecent games all day.
INDECENT
It's time for you to get a job.
Y-You want me to get a job?
With this body?
Are you telling me to
make money with my body?
No!
I just need to observe how the drug works.
Think of it as a clinical trial.
I see.
Don't worry.
You'll change back
once the effect wears off.
I think.
Y-You think?
In the meantime, why not enjoy it?
Live as a girl for now.
As a girl...
But if possible, I hope you can
wake up earlier and live a healthier life.
Since you insist,
I guess I have no choice.
I'd better experience it for myself...
The sex life of girls, that is!
All right, get out of here.
Besides, don't enter my room
without my permission.
Seriously?
Big brother.
Let me tell you something interesting.
What is it?
The female orgasm is a hundred times
more intense than the male orgasm.
Come again?
If you experience that
without proper preparations...
your head might explode from the shock.
What?
Boom!
That's absurd!
MAHIRO
It doesn't matter which gender I am.
I'm a machine!
A monster-slaying machine!
But the boss is about to spawn...
I-I don't have a choice.
This is an emergency.
I can't!
Wait, this isn't right.
Let's see.
Oh, that's right.
Big brother.
Okay. Pull up your shirt.
I'm not into roleplaying with my sister.
This is a physical examination!
Okay, breathe in.
Breathe out.
Do we have to do this every day?
Pretty much, yes.
All right. Turn around.
Big brother...
What?
You smell like a dog
that hasn't been bathed for days.
Really?
When was your last shower?
L-Let's see...
Five days ago, I think?
This moment has finally arrived.
I'm sorry!
Wait, who am I apologizing to?
Are you stupid, Mahiro?
Okay. Let's take it slow to
lessen the shock factor.
It feels even lewder now.
Big brother, I'm leaving
the clean clothes outside.
W-What happened?
Are you all right?
I-I'm fine!
Just what am I doing?
Now that I've gotten
a clear view, it's nothing much.
Well, it's kind of nice to
have a shower once in a while.
Okay. Let's get dressed.
Good grief, what's wrong with Mihari?
She left her own clothes
here accidentally.
Hey! Where are my clothes?
Like I said, I left them in the bathroom!
What?
Really?
So cute!
I've always wanted
a little sister to play dress-up with!
I'm not your little sister!
Good. You got well-dressed down here too.
What? Is that the trend lately?
I feel so exposed. It makes me nervous.
I'll change back into
my own clothes later.
Oh, that reminds me.
I threw out all your old clothes.
I'll decide what you wear from now on.
What?
If I just leave you be, you'd just
wear the same clothes every day.
You need to put on
clean clothes every morning.
You wash up, then have breakfast.
You also need to bathe every evening,
and brush your teeth before you go to bed.
Habits like these
are important to nurture.
Besides, your old clothes
won't fit you anyway.
Anyway, take a look at yourself.
You're so cute now.
You should take good care
of your looks and dress up properly.
O-Okay.
Ba-dump.
Wait. No, no way!
I'm not into that type of stuff!
It just feels so weird to
wear something frilly like this.
In that case, do you want to
try on something more simple?
W-Well, there's nothing
I can do about this for today.
I guess I'll put up with it.
THESE ARE YOUR CLOTHES FOR TODAY.
FROM MIHARI
I see.
What's wrong, Big brother?
Why are you crying this time?
Mihari, I can't take it anymore.
This life of endless celibacy
is about to push me over the edge.
In an attempt to suppress my desires,
I tried playing a BL game
I bought by mistake in the past, and...
I'll make you remember me forever.
This mark will prove that you are mine!
Stop, I... No...
And I got a little turned on.
I never knew I had it in me.
W-Well, what does it matter?
You're a girl now, anyway.
Isn't this part of being a girl and all?
No, it's not!
Dear me...
Is the drug starting to affect
his interests and preferences as well?
I can tell he's enjoying
the girls' clothes.
SPORTS ANIME SPECIAL EDITION
Big brother.
What now?
I have an idea if you are
looking for a change of mood.
What?
No way!
There's no way I can do it!
Exercise doesn't even exist in my world!
I'm a shut-in! Remember?
And why do you sound so proud of that?
I can't do it!
No, this is a great opportunity.
No way! I'll burn to ashes!
Would you rather I leave you to drown
in your BL game?
I can't believe I'm leaving the house
for the first time in two years for this.
Come on, Big brother.
You'll feel better after some workout.
Big brother?
A-At least, don't leave me...
I never intended to. Don't worry.
Okay.
Who could guess
I'm the younger sibling?
W-Wait for me, Mihari...
You're running too fast!
Oh, sorry.
I forgot your stamina is weaker now.
Like I could keep up when I was a guy.
Mihari is my talented little sister.
Maybe even too talented.
She's been athletic all her life.
The track records she set in
middle school still stand today.
FIRST SEMESTER FINAL EXAM RANKING
FIRST PLACE, MIHARI OYAMA, 500 POINTS
She's also academically smart,
and skipped grades to university.
As the brother of
such an outstanding sister,
the gazes of those surrounding me
often made me feel oppressed.
Although that's not the only reason
I've always felt that way.
And now I end up as her guinea pig.
But strangely enough,
I feel much more relieved now.
It's as if this is
the perfect role for me.
Maybe it's time to stop being her brother,
and just stay like this...
Big brother?
What's wrong?
Nip...
"Nip"?
My nipples hurt.
Why aren't you wearing
anything under your shirt?
I left that for you to wear, right?
Well...
It felt like I would have crossed
the point of no return if I wore it, so...
Perfect timing. Let's go shopping now...
For a bra.
What?
H-Hey, maybe we should just forget it...
Stop complaining already.
Welcome.
Hello. This is her first time here.
Could you help her?
Of course. Right this way.
Okay. I need to get your measurements now.
Excuse me.
Wait...
Don't feel shy.
Every girl has to do this in her life.
According to your size,
I recommend these ones.
Which do you prefer?
In that case, let's try this on for now.
Okay.
If you can't buckle it,
just do it from the front first.
Well done!
Oh, so you decided to choose that?
The sports bra looks great on you.
I'm having an identity crisis!
Hey...
Come on. What about exercising?
I can't do it anymore.
Dear me...
I guess there's no progress.
Now then...
I wonder how things will unfold.
BIG BROTHER REHABILITATION PROJECT
Stay tuned!
Did I catch a cold or something?
My body feels kind of sluggish.
Were my hands this small?
Everything seems so weird.
And my head feels strangely heavy.
What?!
Wait, calm down.
I'm Mahiro Oyama, an aloof shut-in
who loves erotic video games.
I'm a full-grown man, or so I thought.
B-But now, I look just like...
a girl!
I-I've got to check.
I just need to confirm something...
Good morning, Big brother!
No! I haven't...
No, I mean... I...
I see...
What?
Good, it appears to be a success.
In any case, you turned out pretty cute.
You should be around
middle-school age, I presume.
M-Mihari...
You drugged me, didn't you?
I slipped a little something
into your drink.
H-How could you?
I'm not your experiment subject!
What do you take your big brother for?
A useless, shut-in NEET.
NEET
You haven't left the house for two years.
You live a disorganized life.
SHUT-IN
On top of that,
you play indecent games all day.
INDECENT
It's time for you to get a job.
Y-You want me to get a job?
With this body?
Are you telling me to
make money with my body?
No!
I just need to observe how the drug works.
Think of it as a clinical trial.
I see.
Don't worry.
You'll change back
once the effect wears off.
I think.
Y-You think?
In the meantime, why not enjoy it?
Live as a girl for now.
As a girl...
But if possible, I hope you can
wake up earlier and live a healthier life.
Since you insist,
I guess I have no choice.
I'd better experience it for myself...
The sex life of girls, that is!
All right, get out of here.
Besides, don't enter my room
without my permission.
Seriously?
Big brother.
Let me tell you something interesting.
What is it?
The female orgasm is a hundred times
more intense than the male orgasm.
Come again?
If you experience that
without proper preparations...
your head might explode from the shock.
What?
Boom!
That's absurd!
MAHIRO
It doesn't matter which gender I am.
I'm a machine!
A monster-slaying machine!
But the boss is about to spawn...
I-I don't have a choice.
This is an emergency.
I can't!
Wait, this isn't right.
Let's see.
Oh, that's right.
Big brother.
Okay. Pull up your shirt.
I'm not into roleplaying with my sister.
This is a physical examination!
Okay, breathe in.
Breathe out.
Do we have to do this every day?
Pretty much, yes.
All right. Turn around.
Big brother...
What?
You smell like a dog
that hasn't been bathed for days.
Really?
When was your last shower?
L-Let's see...
Five days ago, I think?
This moment has finally arrived.
I'm sorry!
Wait, who am I apologizing to?
Are you stupid, Mahiro?
Okay. Let's take it slow to
lessen the shock factor.
It feels even lewder now.
Big brother, I'm leaving
the clean clothes outside.
W-What happened?
Are you all right?
I-I'm fine!
Just what am I doing?
Now that I've gotten
a clear view, it's nothing much.
Well, it's kind of nice to
have a shower once in a while.
Okay. Let's get dressed.
Good grief, what's wrong with Mihari?
She left her own clothes
here accidentally.
Hey! Where are my clothes?
Like I said, I left them in the bathroom!
What?
Really?
So cute!
I've always wanted
a little sister to play dress-up with!
I'm not your little sister!
Good. You got well-dressed down here too.
What? Is that the trend lately?
I feel so exposed. It makes me nervous.
I'll change back into
my own clothes later.
Oh, that reminds me.
I threw out all your old clothes.
I'll decide what you wear from now on.
What?
If I just leave you be, you'd just
wear the same clothes every day.
You need to put on
clean clothes every morning.
You wash up, then have breakfast.
You also need to bathe every evening,
and brush your teeth before you go to bed.
Habits like these
are important to nurture.
Besides, your old clothes
won't fit you anyway.
Anyway, take a look at yourself.
You're so cute now.
You should take good care
of your looks and dress up properly.
O-Okay.
Ba-dump.
Wait. No, no way!
I'm not into that type of stuff!
It just feels so weird to
wear something frilly like this.
In that case, do you want to
try on something more simple?
W-Well, there's nothing
I can do about this for today.
I guess I'll put up with it.
THESE ARE YOUR CLOTHES FOR TODAY.
FROM MIHARI
I see.
What's wrong, Big brother?
Why are you crying this time?
Mihari, I can't take it anymore.
This life of endless celibacy
is about to push me over the edge.
In an attempt to suppress my desires,
I tried playing a BL game
I bought by mistake in the past, and...
I'll make you remember me forever.
This mark will prove that you are mine!
Stop, I... No...
And I got a little turned on.
I never knew I had it in me.
W-Well, what does it matter?
You're a girl now, anyway.
Isn't this part of being a girl and all?
No, it's not!
Dear me...
Is the drug starting to affect
his interests and preferences as well?
I can tell he's enjoying
the girls' clothes.
SPORTS ANIME SPECIAL EDITION
Big brother.
What now?
I have an idea if you are
looking for a change of mood.
What?
No way!
There's no way I can do it!
Exercise doesn't even exist in my world!
I'm a shut-in! Remember?
And why do you sound so proud of that?
I can't do it!
No, this is a great opportunity.
No way! I'll burn to ashes!
Would you rather I leave you to drown
in your BL game?
I can't believe I'm leaving the house
for the first time in two years for this.
Come on, Big brother.
You'll feel better after some workout.
Big brother?
A-At least, don't leave me...
I never intended to. Don't worry.
Okay.
Who could guess
I'm the younger sibling?
W-Wait for me, Mihari...
You're running too fast!
Oh, sorry.
I forgot your stamina is weaker now.
Like I could keep up when I was a guy.
Mihari is my talented little sister.
Maybe even too talented.
She's been athletic all her life.
The track records she set in
middle school still stand today.
FIRST SEMESTER FINAL EXAM RANKING
FIRST PLACE, MIHARI OYAMA, 500 POINTS
She's also academically smart,
and skipped grades to university.
As the brother of
such an outstanding sister,
the gazes of those surrounding me
often made me feel oppressed.
Although that's not the only reason
I've always felt that way.
And now I end up as her guinea pig.
But strangely enough,
I feel much more relieved now.
It's as if this is
the perfect role for me.
Maybe it's time to stop being her brother,
and just stay like this...
Big brother?
What's wrong?
Nip...
"Nip"?
My nipples hurt.
Why aren't you wearing
anything under your shirt?
I left that for you to wear, right?
Well...
It felt like I would have crossed
the point of no return if I wore it, so...
Perfect timing. Let's go shopping now...
For a bra.
What?
H-Hey, maybe we should just forget it...
Stop complaining already.
Welcome.
Hello. This is her first time here.
Could you help her?
Of course. Right this way.
Okay. I need to get your measurements now.
Excuse me.
Wait...
Don't feel shy.
Every girl has to do this in her life.
According to your size,
I recommend these ones.
Which do you prefer?
In that case, let's try this on for now.
Okay.
If you can't buckle it,
just do it from the front first.
Well done!
Oh, so you decided to choose that?
The sports bra looks great on you.
I'm having an identity crisis!
Hey...
Come on. What about exercising?
I can't do it anymore.
Dear me...
I guess there's no progress.
Now then...
I wonder how things will unfold.
BIG BROTHER REHABILITATION PROJECT
Stay tuned!