Ren (not his real name) is a Reincarnated baby with an adult-like mind, his real name is Yaru. he can only talk in his thoughts, since he’s only a baby and he can only babble. He tries to act like a baby, but since he hasn’t have/met any babies before he doesn’t know how to act like one, Ren’s enjoying this “baby” life he has, since all he does in his old body is just work. So this is heaven for him. He doesn’t know his name is Ren now. But he’ll get used to it. He talks in his mind alot btw.