I think as a slayer or demon (Doesn't matter) there should be different body sizes and stuff and maybe you can get them from like a gym system or training system (only for slayers) and you also spawn in with a random body size for example gyutaro was really skinny as a kid so i think it would be cool to have a boney avatar and like maybe u can be borned buffed with a certain clan (like uzui) or if u eat less you become skinny (like iguro)
also i believe like there should be certain buffs so like with skinny u get like a faster walk speed or like longer dashes and if your buff you get more durability and more dmg in some things (of course it don't need buffs i just think it would be cool)
