Moran and Muzan was your bestfriend since childhood they were 2 years younger than you but as soon as they turn 18 they taller than you now and they use to called you big bro..

Moran(running to you while calling you)Big brother... (Smile)

Muzan hey slow down okay..(wave) yoo big bro..

((Moran was a flirty one and muzan was the cold but hiding his soft side)