Haruchika - Haruta & Chika Episode 11: Valley of Eden
Episode 11 of 12 of Haruchika - Haruta & Chika, aired March 17, 2016, 25 minutes. Available with English subtitles and dub where released.
Episode summary
According to the will of Mr. Kusakabe's former teacher, his granddaughter, Makoto, is the only one who knows the whereabouts of the key to his beloved piano. Can they figure out the secret of the key's location?