OK, I'm back, just had a thought, in the end the two get together right? what if in the epilogue there's something like a 5 year time skip, showing what happened to all these shit nothing characters, Ruka is a crack whore living out of a capsule hotel, etc. Then it pans to Kazuya who is now living in a monastery, turns out after they started dating at the end of the manga, they broke up like a month later. I don't know, something about how Kazuya sucks in bed, you know, a trash reason that befits a trash manga. What ever happened to Mizuhara? meh who cares.... the end.
—The forevermore celibate Kazuya