Responses
In that scene they are talking about the noodle chef who was drugging the locals - _he_ is 92.
The MC is 34, he's spent 15 years there at the start of the story - why would he go back to earth and expect to see his mom alive if he were in his 90's? The scene I'm thinking of is somewhere around there, where he says he's 34, and they say he looks really good for his age.

Wait are yall saying the girl in the cover is his love interest??? A child????