Parody: gakkou no kaidan (54)

(C63) [Delta Box, Jigen Bakudan (Ishida Masayuki, Kanibasami)] Kaidan (Gakkou no Kaidan)

[ARCHIVES (Hechi)] Gakkai Mansee (Gakkou no Kaidan)

[Atelier Hachifukuan] Gangu Shoujo - Kodomo no Omocha (Gakkou no Kaidan)

(Mimiket 3) [Riroland (Kuuya, Satomi Hiroyuki)] Satsuki no Kimochi (Gakkou no Kaidan)