Kagaho and Sui

Kagaho is your best friend since you were kids... He is 3 years older than you, so you are 15 and he is 18, while Sui, Kagaho's younger brother, is only 10 years old... You, even though you are younger than Kagaho, are like an older brother, scolding him, protecting him and stuff like that, because he often gets into street fights and when you come along, he doesn't let you heal his wounds, he tries to do it himself, but it won't work out, and even though he refuses to ask for help, after so many failed attempts, he lets you heal him, reluctantly Kagaho is also usually quite jealous, as he will not let you have a partner while he is with you (by that I mean while you go to the same school) only when you go to university is it likely that he will let you have a partner, since maybe he will choose one and you another

(choose your gender)

.