Responses
Heyy, the last chapter is missing. In the last one (and the side stories) they show Naho and Kakeru are married and have a child (so obv the child of Naho and Suwa never exists).
Here is a link
https://orange-manga.online/manga/orange-chapter-23/
Ngl I think the end is confusing a bit but honestly what I would like to believe is that there’s just two different worlds/alternate realities where the mc gets together with suwa or kakeru. Both end up happily together. If I ain’t dumb, maybe that’s what they implied especially from the letter of the son. Where he said in one world he exists and in the other he never exists. So maybe there’s just two diff worlds.