A tranquil tale about two boys from very different upbringings. On one hand you have Kai, born as the son of a prostitute, who's been playing the abandoned piano in the forest near his home ever since he was young. … Soma Saito, Natsuki Hanae, Junichi Suwabe, Hideyuki Tanaka, Toshiyuki Toyonaga, Maaya Sakamoto, KENN Added on Netflix 2023-08-05.