Idol × Warrior Miracle Tunes! S01 E24 Kanon, Aiming to be an Artist!

While Kanon's class is having art class outside, Komuragaeri infiltrates her school and turns the art teacher (Toru Tezuka) into the Negative Jeweler, Shinbigan, who puts the students under his control. Miracle Tunes defeats him and recovers the Ocarina Jewel.