Same-themed manga about kid fighting female ninjas from japanese imageboard.
Gudako, Astolfo to Nakayoku Naru | Gudako, Astolfo Learn to Get Along
(C83) [Hyakki Yakou (Z-ton)] Centaur Musume de Manabu Hajimete no Thoroughbred | Learning With Centaur Girls: Introduction To The Thoroughbred [English] [4dawgz + Thetsuuyaku]
(C92) [vyowolf (vyo)] NiizuMakabe (THE IDOLM@STER MILLION LIVE!) [English] [Cool Kids Translations]
[Ninnindo (Tonsuke)] Onee-san wa Shota ga Suki (Various)
Marie-chan punishment started
[Agata] Sannen Bitch-Gumi, Kodomo Sensei | Senior Year Sluts Get a New Kid Teacher (Ane x Pako² [Kyuukyokuban]) [English] [JuliusWinnfield]
(C93) [Tekokids (Leonardo 16sei)] Gomen ne Yuusha-sama (Mahoujin Guru Guru)