[Takurou] Rika no Kenkyuushitsu Ch. 1-2 [English] [Crystalium]

[Takurou] Rika no Kenkyuushitsu | Rika's Laboratory Ch. 1-4 [English] [Crystalium]

[Takurou] Rika no Kenkyuushitsu | Rika's Laboratory Ch. 1-3 [English] [Crystalium]

[Takurou] Rika no Kenkyuushitsu Report File Choujin ni Naru X (COMIC HOTMiLK 2014-01) [English] [Crystalium]

[Yanagi Masashi] Mama To Yobanaide!?

[Takurou] Rica no Kenkyuushitsu ~Chiteki na Rikeijo no Seitai~ [Chinese]