bijuaru-kurifu : Kôdô shinri sôsakan - Tateoka Ema
NNN (neko neko nettowâku) kara no shisha : Kegawa o kigaete
NNN (neko neko nettowâku) kara no shisha : Anata no neko wa dokokara?
Kushihikichimori
Hyôsa no utau ; Shûeisha bunko, [Ki18-3]
Jitsuryoku appu! Nihongo nôryoku shiken N4 : yomu : Moji goi bunpô dokkai / The preparatory course for the Japanese language proficiency test
Jitsuryoku appu! Nihongo nôryoku shiken N3 : Bun no rûru [=rule] : Moji goi bun no bunpô / The preparatory course for the Japanese language proficiency test
Jitsuryoku appu! Nihongo nôryoku shiken N2 : Bun no rûru [=rule] : Moji goi bun no bunpô / The preparatory course for the Japanese language proficiency test