Collie

Piano prodigy Arima Kosei dominated the competition and all child musicians knew his name. But after his mother, who was also his instructor, passed away, he had a mental breakdown while performing at a recital that resulted in him no longer being able to hear the sound of his piano even though his hearing was perfectly fine.

Tada Banri is a newly admitted student at a private law school in Tokyo. Due to the after-effects of an accidental fall from a bridge shortly after high school graduation, he lost all his memories from before then.