Stepsister Next Door || SaTzu || MiChaeng

Chapter 1

"UGH!" Tzuyu groans

"Yah Tzuyu, what's wrong?" Chaeyoung

Chaeyoung and Tzuyu are on the architecture building's rooftop, Jihyo invites them for lunch but Tzuyu don't want to go, and Chaeyoung decided to join her friend.

"I hate her" Tzuyu hissed

"Who?" Chaeyoung

"Who could it be?" Tzuyu replied

Chaeyoung laugh "Your stepsister again?"

"Tsk! She keeps on bugging me! Not even giving me some privacy" Tzuyu

"She's still babying you? You guys should bond more often, college made you busy" Chaeyoung

"Bond!? If she just know how to mind her own business, then both of us can live in peace... Why don't she just mind her own life, like dating anybody" Tzuyu

Chaeyoung laugh "You sounded like a jealous girlfriend... You still haven't moved on from her? I know she's your first love, but try to forget the past and rebuild your good relationship"

"Nah! It's not about that! That's just puppy love!" Tzuyu defends

"Then be friends with her again" Chaeyoung

"As long as she don't stop pestering me, we will never be friends" Tzuyu sighs "If she's just like your stepsister, then I can be the happiest person in the world"

"huh?" Chaeyoung

"Your sister don't talk much, and that's peace" Tzuyu

"You're wrong... She talks a lot, I just can't hear her" Chaeyoung

"Well at least she's cool to be with..." Tzuyu insisted

"Cool to be with?!" Chaeyoung exclaimed "She's strange!"

Tzuyu laugh "Maybe she's just fooling around..."

"Well, she's crossing the line" Chaeyoung

"Line? What line?" Tzuyu

"I don't know, I just think she's different... She's nice and all, but there's something in here" Chaeyoung

"Maybe you're just overthinking... Stop playing videogames, your mind are creating things that shouldn't be there" Tzuyu

Chaeyoung shook her head "Well at least I'm not secretly in love with my stepsister" She teased

Things like this are the things that people usually keep to their self, but Chaeyoung and Tzuyu are different... They're close, one of the reason of their closeness is the fact that they hide each other's secret... Which is being different to others in terms of sex organs, they have a condition called Hermaphroditism or being an intersex.

~~~

Tzuyu's busy, reviewing for the upcoming midterm exam when Sana barge into her room, and ask for something unexpected.

"I need sperm" Sana

Tzuyu's eyes widened "WHAT?!"

"I need it for one of my subject" Sana

"And why are you telling this to me?" Tzuyu

"Cause I know you can help me" Sana

"How the hell can I help you?" Tzuyu