Hey there! I won't say too much to not spoil anything with that first question, but the mc's past will be discovered slowly through the story, next update should also gives a few direct answers toward his lack of default name
If you speak about the train accident, I'll try to be more explicit about what happened for the other passengers in the next update, but characters can get hurt or worse.
Yup!
The first sex scene appears quite fast yeah, but I prefer it that way since the sprites and visuals are already very nsfw, we aim for a very lewd vn so it'd be weird to have little to no sex scene and focus only on the story (makes me think that a no-sex run would be kinda funny to make)
Thanks! I have a friend that will help us with the grammar, I don't know if he'll be able to read/fix everything until the next update (I don't want to delay it too much), but it should help