Responses
Chapter 5 seems to not have been completed yet by the author (but I'm not Japanese so I'm not sure, it just seems like other sites in Chinese have mentioned that too.) Apparently there were several years between #3 and #4 though, so who know how long #5 will take?
Where is Chapter 5 on? Oh please I can not wait, poor Al's alone and Ed still dreaming! Do not short incest, but this story is very beautiful!