Warera Konsen Gasshoudan

Zen, the head of the men's choir at Ehiju High School, will do anything for a song. For the sake of competition, he even recruits girls with big voices. That was how Minae found herself in the chorus club. The handsome Zen and Ai are hosting a music festival featuring a mix of talents and invite you to join!

(Source: Hana to Yume Comics, translated)

Included one-shots:
Connection (┴┬コネクション)
Scandal2 + a (スキャンダル２＋α)
>AMANOJAKU Rhapsody (ＡＭＡＮＯＪＡＫＵラプソディ)
Paranoia, Function (パラノイア・ふぁんくしょん)
Abunai Koi Janai! (あぶない恋じゃないっ！)
Kokuhaku (告白)
Nayameru Kishi (なやめる騎士)