Just finished this and what a damn ride that was! Beautiful ending as well. Well, apart from indecisive harem. Don't know why writers write themselves into a corner like that tbh as i understand that none can be selected, at least from the important two. And it's funny how non romance stories have the best damn romance when it happens, what's up with that? Watase was a true man when he was talking to Kazami, way more touching than regular romance stuff.
Either way, the story was good. There can be no doubt about that. It did have it's giant problem though, and that was it's way of telling the story. First route was amazing through and through. Second, not so much with it's infinite number of flashbacks and mc's grating voice as a kid. Third was ok. Fourth was almost as bad as the second with it's relentless flashbacking. Yes, every flashback was relevant and gave us a lot of "aha" moments, but that nagging feeling about the story as a whole being completely halted never vanished. It was a slog, even though it was at times very interesting, it was tedious nonetheless. But when the story finally broke out of it's cryostasis it immediately became amazing again, and with a touching ending as well.
Well, i can't do anything but recommend this for anyone who likes suspense thrillers with loads of mysteries, plot twists and careful revelations. Well, be prepared for flashback hell, but that's about the only thing i can truly fault it with.
I didn't read the extend episodes though as they just seem to be more flashbacking for more fleshing out of characters, which i personally feel is pointless.