Headcanons

Sibling headcanons

These are the headcanons I have for characters I think would have siblings.

Koushi Sugawara: I headcanon Suga to have three older sisters. The oldest two (born three years before Suga) are twins named Aoi and Ayama. Aoi is not very bright and sometimes apathetic, while Ayama is extremely smart and caring. The youngest is only a year older than Suga and is named Kaiya. She is very sporty and has a loud personality

Asahi Azumane: I headcanon Asahi to have a younger sister in her third year or middle school. Her name is Hana. She is the complete opposite of Asahi, she is extroverted, loud, not afraid to speak her mind and extremely strong willed.

Tadashi Yamaguchi: Tadashi has two younger siblings Sana his sister and Ren his non binary sibling. Sana is like Tadashi and is very shy while Ren is loud and obnoxious.

Hajime Iwaizumi: Iwaizumi is a middle child in this headcanon. His elder sisters name is Mei. She is kind hearted and holds her brothers extremely close to her heart. Haru is only nine and think his older brother is the coolest person he's ever met.

Tooru Oikawa: Oikawa's sisters is 5 years older than him. Chihiro her name is and she had Takeru at a very young age but to her luck the father was very supportive of her and they got married as soon as they were both 21. Chihiro calls her brother whenever she can and visits quite often.

Issei Matsukawa: Mattsun a younger sister named Fumiko. She doesn't talk much and Mattsun's main goal everyday is to make her laugh. Her first year of High School was really tough so seeing her smile makes his day.

Takehiro Hanamaki: Makki will forever spite the day that his older brother Hiroshi didn't hold his power over his head. His brother can be nice..sometimes.

Tetsurou Kuroo: Kuroo has two older brothers. Masohiro being the oldest despite being shorter than the two. Masohiro has a aggressive caring nature and is very protective of Kuroo. Naoko is the more fun and do whatever you want kind of sibling but would literally go to jail if it meant Kuroo was safe. They would push each other of a cliff though.

Kenma Kozume: Kenma has a little brother Ryo who is ten and despite their large age gap and differentiating tastes in hobbies and activities they get along quite well. Ryo is kind of protective of Kenma.

Morisuke Yaku: Yaku has the unfortunate blessing of having toddler twin sisters. Chika and Azumi are both extreme handfuls. Where do you think Yaku got so good at looking after people from?

Koutarou Bokuto: Seijun is Bokuto's thirteen year old sister who is smarter than him and helps him all of the time. Had a bad day she is there for you, had a fight with a friend she is talking to you and them to sort it out, need help with you english homework shes got your back. She gives the best hugs and the best advice and if you don't have Akaashi on hand when Bokuto is having a bad day Seijun is the person to call.

Satori Tendou: He has an older brother Eichi. I really got nothing on him other than he is in a band.

Yuji Terushima: A lil bro named Sho who gets more girls(and boys) than Teru.