@Howling wolf its not that his "tadpoles" are poisonous it was that he was using the posion skill before she came in the room so probably his hands and/or the air in the room was poisonous
@Digital Squad wait didn't abubu already detox it welp regardless in the early chapter I feel like MC and heroine feels kinda distant (the arc where he wait the second he** challenger that girl) also RIP in advance for the he** difficulty kid he might not make it/give up since there's no mentioned of him in the future