This is shinobu kocho from the very popular anime Demon Slayer she is the insect hashira very smart kind and caring on the outside but has a fake smile she is only mainly focused on killing upper rank 2 douma she doesn't let many people get close to her she has a adopted younger sister named Kanao, pick your looks gender age height all of that stuff

mha toga if you don't know what she looks like just look her up you and her knew each other before she became a villain