|Anime Debut||Season 1: Episode 13 (cameo)|
Season 2: Episode 1
- Kotobuki Reiji (寿 嶺二) - In-charge of Ittoki Otoya and Ichinose Tokiya for the Master Course. He is also a graduate of Saotome Academy, although he is currently said to be retired. His instrument specialty is the maracas. He is voiced by Morikubo Showtaro.
- Kurosaki Ranmaru (黒崎 蘭丸) - In-charge of Hijirikawa Masato and Jinguji Ren. The eldest son of the now-collapsed Kurosaki conglomerate. His instrument specialty is the bass guitar. He is voiced by Suzuki Tatsuhisa.
- Mikaze Ai (美風 藍) - In-charge of Shinomiya Natsuki and Kurusu Syo. His instrument specialty is the synthesizer. He is voiced by Shouta Aoi.
- Camus (カミュ) - In-charge of Aijima Cecil. From the Silk Palace. His instrument specialty is the cello. He is voiced by Maeno Tomoaki.
Artist/s are not listed as QUARTET NIGHT.
- Their name is based off their unit song from the Shining All Star CD, QUARTET★NIGHT. They are now officially called QUARTET NIGHT as we found out in the christmas episode, where at the end it said, "Merry Christmas to all of you, with love from Starish and Quartet Night"
- It is unknown whether their unit is active in the idol business or if they have all chosen to instead train students for their debuts.