When Guren from Kaifuku Jutsushi finally accepts Keyaruga...

Nanahoshi Kangengakudan feat. Matsushita - With a Dance Number

Kegare Naki Bara Juuji

Here the OffVocal Version
https://soundcloud.com/brayan-l-pez-8/ni-sokkususu-shukusai-no-elementalia-1