Koremitsu is a bit of an idiot, and I don't like characters who are idiots. Hikaru is (was) someone I would never want to be involved with, and I have no sympathy for him when it comes to his relationship with Aoi. The three main girls are interesting in parts, but their characters are mostly shallow. The plot itself isn't bad, and if the characters were better written, the whole thing could be much more enjoyable to read. It's a shame the manga ended at that point, because discovering the truth about Hikaru's death is much more interesting to me than what we got.
Story 1: There's no reason they should fall in love with each other. They're both completely bland, but maybe if the series was longer, something good could be made out of it. It's not the worst thing I've ever read, but it's also nothing positive.
FL is stupid. ML is stupid. FL's ex-boyfriend is trash. ML's sister is toxic. No one talks to each other, ML can't explain anything, FL is constantly crying and running away. This story is so stupid and I was very annoyed reading it. I don't recommend this manga.