I read a yaoi manga a while back that had a very serious black haired martial artist in charge of a small dojo. The master of the dojo had died or something, and his son, who had stopped training in martial arts came back. The black haired guy apparently loved the guy who came back, and it goes on from that. One of the son's coworkers visits at some point, and I think the black haired martial arts guy was taking care of a garden. Not sure about that part. Could anyone tell me the name of this manga, please?

Moved to Yaoi/Yuri.

Is it Hanjuku Orange perhaps?

Mind eraser, no chaser

That is it! Thanks!