isnt it Forbidden?!! (Haikyuu various x Oc/male Reader)

Oikawa M/n elder brother of Oikawa Tooru 5 years older then him M/n intelligence and have double promoted in classes in 3rd year of Karasuno he was only 16 year old yet he was taller then Tenma who is known as Small Giant M/n doesn't play Volleyball yet very close friend with Tenma soon when Oikawa in 2nd year of high school he came back from London studying how is M/n life when he get involved with Volleyball again?? capturing the students heart??!!!

a:n- Forbidden that include Yaoi include Tooru who love his brother more then he should

warning: I don't own anything also Sorry for grammar error or spelling errors