Responses
https://www.mangago.zone/read-manga/divine_beast_kindergarten/ I haven’t read this yet so im not sure, but I think it’s what you’re looking for (based on the cover atleast)
bro is taking care of himself
https://www.mangago.zone/read-manga/i_ll_retire_after_saving_the_world/
I don't want child mc but mc who takes care of child or adopt a child. I'm kinda bored of reincarnated mc (baby/kids) i want mc who reincarnate to take care of a kid