(C66) [Doujin Hoops] Sweet Poison/ Bitter Honey (Onegai Teacher, Onegai Twins)

(C64) [Koudansha (Kouda Tomohiro)] Onezukushi (Onegai Twins, Onegai Teacher)

(CSP4) [Parupunte (Fukada Takushi)] F-50 (Onegai Teacher, Onegai Twins)

(C77) [FREAKS (Onomeshin)] Onepai! Ranking (Onegai! Ranking)

(CR32) [Morimi-ya (Morimi Ashita)] Morimiya 6 Gouten - Onete (Onegai Teacher, Onegai Twins)

(C82) [TETRODOTOXIN (Nise Kurosaki)] Natsuchichi Rendezvous (Natsuyuki Rendezvous)

(C82) [TETRODOTOXIN (Nise Kurosaki)] Natsuchichi Rendezvous (Natsuyuki Rendezvous) [English] {Doujin-moe.us}

(CSP4) [JIBAKU-SYSTEM (Suzuki Amaharu)] Onegai Seitokaichousama -Ichigo- (Onegai Twins)

(C72) [Koudansha (Kouda Tomohiro)] Onezukushi Tsumeawase Plus (Onegai Twins, Onegai Teacher)

(C66) [Parupunte (Fukada Takushi)] F-47 (Onegai Teacher, Onegai Twins)