Watch (Futaket 13) [TETRARA (Tokiwa Yutaka)] Kaijin A (ふたけっと 13) [TETRARA (ときわゆたか)] 怪人A

[TETRARA (Tokiwa Yutaka)] Tekisei 0 no Futanari Joou-sama -Oni Shigoki! Jigoku no Gyaku Anal Kenshuu- [Digital]

[TETRARA (Tokiwa Yutaka)] Seireki 4999-nen no chinji (Battle Athletes) [Chinese] [沒有漢化] [Digital]

[TETRARA (Tokiwa Yutaka)] Futanari Succubus Homo Ochi Seibai ！ | 扶她魅魔墮落男同懲罰 ! [Chinese] [沒有漢化]

[TETRARA (Tokiwa Yutaka)] Tekisei 0 no Futanari Joou-sama -Oni Shigoki! Jigoku no Gyaku Anal Kenshuu- [Chinese] [沒有漢化] [Digital]

[Yutakadou (Dou Yutaka)] Atarashii Seikyouiku 2 [Digital]

[Yutakadou (Dou Yutaka)] Atarashii Seikyouiku 7

Kaijin A

[TETRARA (Tokiwa Yutaka)] Tekisei 0 no Futanari Joou-sama -Oni Shigoki! Jigoku no Gyaku Anal Kenshuu- [English] [UncontrolSwitchOverflow] [Digital]

[TETRARA (Tokiwa Yutaka)] Ikenai Onii-chan to Ichaicha -Agape- 丨與壞哥哥一起恩恩愛愛 -Agape- [Chinese] [沒有漢化] [Digital]

[TETRARA (Tokiwa Yutaka)] Seireki 4999-nen no chinji (Battle Athletes) [Digital]