Isshiki is a piano prodigy and Sasa, the former prodigy and his predecessor. Sasa's sense of dignity suffers when he loses his position, but it returns when Isshiki professes his love. I enjoyed the transition from professional envy and competition (or, in Sasa's case, utter capitulation and despair) to cooperation, admiration and love, but it feels difficult to connect to Sasa. Apparently there are two other volumes to go along with this scanned original, but there haven't been any signs of them.
Kenban no Ue no Caress