(C75) [Mechanical Code (Takahashi Kobato)] Otonari Extra (Yotsubato!)
(C76) [Mechanical Code (Takahashi Kobato)] Otonari 2 (Yotsuba&!)
(COMIC1☆2) [Mechanical Code (Takahashi Kobato)] Otonari. Pre Version (Yotsubato!)
(C60) [Mechanical Code (Takahashi Kobato)] Method to the madness 2 (You're Under Arrest!) [English] [EHCOVE]
(COMIC1☆2) [Mechanical Code (Takahashi Kobato)] Otonari Pre Version (Yotsuba&!) [ENG] [Yoroshii]
[Mechanical Code (Takahashi Kobato)] Method to the madness 3 (You're Under Arrest!) [English] [EHCOVE]
(C75) [Mechanical Code (Takahashi Kobato)] Otonari Extra! (Yotsuba&!) [ENG] [Yoroshii]
(CR35) [Mechanical Code (Takahashi Kobato)] method to the madness 3.5 (You're Under Arrest!) [English] [EHCOVE]
(C74) [Mechanical Code (Takahashi Kobato)] Otonari. (Yotsubato!) [English] [Yoroshii]
(C77) [Mechanical Code (Takahashi Kobato)] Otonari. 3 (Yotsubato!)