(C54) [JUMBOMAX (Ishihara Yasushi)] AIka Dynamic (Agent Aika)
(C54) [BLACK STARS (Miura Takehiro)] GUNYOU MIKAN Vol.12 (AIKa)
(C52) [Nakayohi Mogudan (Mogudan)] Sakura Gumi (Sakura Wars, AIKa)
Aika Complete Fanbook
(C52) [Nakayohi (Mogudan)] Sakura Gumi (Sakura Taisen, Agent AIKa)
(CR26) [White Elephant (Various)] Futomomo Shukujo Kannoushashinshuu (AIKa)
(SC36) [Yomosue Doukoukai (Gesho Ichirou)] OUT TRIAL 2 (AIKa) [English] [N04h]
(SC36) [Yomosue Doukoukai (Gesho Ichirou)] OUT TRIAL 2 (AIKa)
[Mudai Document (Kari (Marron)] Agent Alone ~Kodoku na Agent~ (Agent Aika)
[Sangetsu No Lion (Don Shigeru)] DENGEKI 2 (Agent Aika) (Digital)
[METAL Bunshitsu (Azuki Kurenai)] Trial-X (Agent AIKa)
(C54) [BLACK STARS (Miura Takehiro)] GUNYOU MIKAN Vol.12 (Agent AIKa)
(C62) [Sangetsu No Lion (Don Shigeru)] DENGEKI (AIKa)
(CR25) [Yomosue Doukoukai (Gesho Ichirou)] OUT TRIAL (Agent Aika)
(C56) [Human High-Light Film (Various)] Delmo Press (Agent AIKa)
[Seishun No Nigirikobushi!] Favorite Visions 2 (Sailor Moon, AIKa)
(C52) [Nakayohi (Mogudan)] Sakura Gumi (Sakura Taisen, Agent AIKa)
[Sangetsu No Lion (Don Shigeru)] DENGEKI 2 (Agent Aika)
(C51) [LEVEL-X (Akamatsu Ken)] AM:3 (Aika, Utena)
(C82) [abgrund (Saikawa Yusa)] Kizuna * Dream (Prunus Girl)
(C82) [abgrund (Saikawa Yusa)] Kizuna Dream (Prunus Girl) [English] =SW=
(C86) [Fujiya (Nectar)] Usui Hon no Chaika | Thin book of Chaika (Hitsugi no Chaika) [English] [TSHH]
(CSP6) [RPG COMPANY2 (Sakusha Fushou)] ChaikaRose (Hitsugi no Chaika)
(C86) [Fujiya (Nectar)] Usui Hon no Chaika (Hitsugi no Chaika) [English] [biribiri]
(C86) [Fujiya (Nectar)] Usui hon no Chaika (Hitsugi no Chaika) [Chinese] [塔布里斯個人漢化]
(C86) [Fujiya (Nectar)] Usui Hon no Chaika (Hitsugi no Chaika)
[ASIANBOY (Hasemi Ryo)] Hatsujou! Tonari no Chaika-tan (Hitsugi no Chaika) [Digital]
(C87) [Wakusei-teki Shukou (Yutakame)] Kouhaku Kimidori x Toru (Hitsugi no Chaika) [English] [doujin-moe.us]
(C86) [Manjudou (Tsukishiro Saya)] Chaika-chan no Ecchi na Hon. (Hitsugi no Chaika)
[Sumomo Dou (Sumomo EX)] Atsukai. Futou. Shiro Chaika no Usui Hon (Hitsugi no Chaika) [Digital]
[Sumomo Dou (Sumomo EX)] Treatment. Unfair. - A White Chaika Booklet (Hitsugi no Chaika) [English] [Digital]
(C86) [Mou Sukoshi Hidari e (Uono Shinome)] Chaika Route Aka (Hitsugi no Chaika)
(C87) [Nekoranbu (Minako Nami)] Kouhaku Manjuu (Hitsugi no Chaika)