The first episodes of the show feature the relationship of Asaya and Kensuke.
The one-volume manga series, "Hitorijime My Boyfriend" is based on Asaya and Kensuke.
Based on Arii Memeco's Hitorijime My Hero manga, a spinoff series of an earlier Hitorijime Boyfriend manga.
The other series, "Hitorijime My Hero" focuses on Masahiro and Kousuke. This series is much longer and takes place after "Hitorijime My Boyfriend".