Sources:
"Benkyo Revolution 21" / "勉強レボリューション21" by youtt6 https://youtu.be/fw7G1AEr0bQ / http://nico.ms/sm28795337
"Renai Revolution 21☆" / "恋愛レボリューション21☆" by じすみっく https://youtu.be/R-He5ILE7KE / http://nico.ms/sm22220730

BGM: Beatmania IIDX18 - Renai Revolution 21 https://youtu.be/vFCfhsjAhYM