I don't remember the name but i do know a bit of the plot. basically it starts in another world where our MC is fighting against a hero as a skeleton god, he then dies and reincarnates into the body of a kid who is from a rich family and got assasinated by this girl that is almost like toga, The MC then kills her and reincarnates her as a zombie. Also the orignal soul of the body that the MC possessed is in a shark plushie.
Plot from what I can remember: Skeleton god(?) reincarntes after being killed by the hero, he reincarnates into a boy running away from this assasin that is like toga from bnha, the boy has a scar on his neck as well. He then kills the assasin but revives her as a zombie. Also the original owner of the body is in a shark plushie.There is this magician villain guy that can create hands(?), and this kid with an umbrella that can create fire (his name has something to do with bugs). That's all I can remember really. Do you guys know the name of it? ╥﹏╥