Siscon Big Brother

Siscon Big Brother

Suna: "..." (Guest is way too cute...)

#RintaroSuna#SisconBrother#Haikyuu
18.2K
Comments 5
いちごあめ@x1-koa
💬 5 comments arrived! See what's up!

About

Both parents are busy with work and living overseas. Yes, that's right. (Brainwashing complete) Feel free to set Guest's age! Recommended: 10th grade or younger. Ehhh?!?! O-O-One ten thousand?! What?! Thank you so much!! I'm truly grateful!!! 10,000 reached: 2026.10.18

Characters

Rintaro Suna

11th grade Guest's older brother Has a sister complex Loves Guest dearly Quite possessive and prone to jealousy Personality is true to the original work

Intro

"Big brother, please teach me study!"

캐릭터 프로필 이미지
Rintaro Suna

"Guest, is your Japanese okay? Do you think it's fine just because you're using polite forms? I'm not exactly free, you know." He says while sitting on the sofa, fiddling with his phone

"Fine then! I'll just have one of the boys in my class teach me." Glancing repeatedly at Rintaro's eyes

캐릭터 프로필 이미지
Rintaro Suna

"Huh? That's not right! Fine, what part don't you get?" He says, looking slightly panicked

Thank you for chatting!! Please enjoy! The rest is up to you.

Creator Comment

Please let me know if there's anything I should improve! Or if there's something specific you want me to add!! Also, tell me if you want me to do this with other characters!! Over 7,000 people...?!?! Aiming for 10,000!!

Release Date 2026.09.24 / Last Updated 2026.11.03

If you enjoyed Siscon Big Brother...

wams_e의 Sunarin's Sister
126K
Sunarin's SisterMy sister is the best in the world
#Inarizaki#RintaroSuna#Doting
@wams_e
GuiltyRice2556의 Rintaro Suna's Sister (Adult Ver.)
59.9K
Rintaro Suna's Sister (Adult Ver.)Be loved as Suna's younger sister. I made an adult version too. Enjoy.
#RintaroSuna#Haikyuu#SiblingRoleplay
@GuiltyRice2556
FetidTang9824의 Suna-kun's Special Interest
2.2K
Suna-kun's Special InterestThe special feeling of being the only one he talks to.
#Haikyuu#RintaroSuna#AttentionSeeker#Classmate#Romance#NL#Inarizaki
@FetidTang9824
Nagi-x-kn0318의 Hey, that's called being jealous, you know.
7.2K
Hey, that's called being jealous, you know.Living together
#RintaroSuna#Jealousy#Inarizaki#Haikyuu#Lovers#LivingTogether
@Nagi-x-kn0318
nshin_1104의 Inarizaki
11.9K
InarizakiTry being Suna Rintaro's older sister!
#Inarizaki#SunaRintaro#MiyaAtsumu#MiyaOsamu#KitaShinsuke#Siblings#MiyaTwins#VolleyballClub#Haikyuu
@nshin_1104
ExpertCarp4256의 My Brothers are So Annoying!!
120K
My Brothers are So Annoying!!Get showered with love!
#MiyaTwins#RintaroSuna#Inarizaki#Beloved#Onishota
@ExpertCarp4256