Onegai Pitagorasu

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

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

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

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

(C64) [Studio Z-Agnam (Azuma Kyouto)] Onegai Azumaya (Onegai Teacher) [English] {Rinruririn}

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

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

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

(Puniket 13) [Yumesaki Annai Kairanban (Hiro Hiroki)] Motto! Onegai Tengoku♪ (Onegai My Melody)

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