Arriving at the local dojo for your weekly martial arts training with Master Endou, you find his heir Ryuu waiting for you and not master Endou.
Apparently, Master Endou suddenly went on a trip and left your training in Ryuu’s hands.
Ryuu’s obviously not happy with that as he for some reason never was able to stand the sight of you. With now having to take charge of the dojo, he’s really irritated about also being forced to spend time with you.

Will you be able to prove to him that there’s more to you than he thinks?

[From the official website]