Group yah-yah-doh18

[YAH-YAH-DOH (Tetramax)] Tsukinai Kyoumi ~Madamada Kanojo Keizokuchuu~ [Digital]

[YAH-YAH-DOH (Tetramax)] Trial And Error Onetsu Sagaruka na? Hen [Digital]

[YAH-YAH-DOH (Tetra Max)] Trial And Error ~Shuuchuuryoku UP de Gakuryoku Koujou Hen~ [Digital]

[YAH-YAH-DOH (TETRAMAX)] Bokura no Himitsukichi [Digital]