This manga started off rough, I'll admit. You could honestly tell the mangaka meant for it to be a standalone at first, but with the confirmation at the end, it's being turned into a series.

I wasn't a huge fan of how Mio pressured Shun into having sex so much, but otherwise, the rest of the manga was okay. But for those who aren't a fan of that either, just be aware that it does take up a chunk of the story.