
Quick answer — Yuu Kobayashi worked on Sayonara Zetsubou Sensei: Nyankin no Kirisuto (Theme Song Performance), Ya Boy Kongming! Road to Summer Sonia (Insert Song Performance), Kyou no Go no Ni (2008) (Theme Song Performance) and 2 more anime.
Yuu Kobayashi worked on Sayonara Zetsubou Sensei: Nyankin no Kirisuto (Theme Song Performance), Ya Boy Kongming! Road to Summer Sonia (Insert Song Performance), Kyou no Go no Ni (2008) (Theme Song Performance), Maria†Holic Alive (Theme Song Performance), Senran Kagura: Ninja Flash! (Theme Song Performance).