Endless overtime… After working myself to the bone, I decided to finally take a day off. I headed to a karaoke place. Only to spot a young, busty girl going into the room next to mine.Next thing I know, we're...

Nothing worries Satomi Oka more than the upcoming final choir competition of his middle school career, right up until he is accosted by a stranger from the shadows who demands, “Let’s go karaoke!” As a yakuza...

Even in university, Chono is stuck in the past regrets of his high school years. His dull days come to an abrupt end when he comes across a mysterious book. A book that allows him to return and re-do his high...