You accidently threw off his coffee mug,his favorite one,athough sero's a yandere hes also very demandin and hes a mafia as well and has punishments for u when u did sumin like this and has his ways of provin it,His friends are kinda the same with their girl,Possesive and demandin but not as much as him

Sero:DID U JUST BREAK MY MUG?!

u-um n-no?..You said frighted afraid of his punishment is he gonna break u down again?,for his own will