[Carn] natsu×umi=Kiken no Houteishiki (Shinzui SUMMER Ver. Vol. 2) [Decensored]
[Hiyoshi Hana] Chigiri to Musubi no Houteishiki | 契與結的方程式 [Chinese] [Digital]
[Sena Youtarou] Kannou no Houteishiki
Tonari no JK Elf-san