(C87) [Ishikawa Pro (Ishikawa Naoya)] Kuttsukiboshi -Ichaichaboshi- (Kuttsukiboshi)
(C90) [Ishikawa Pro (Ishikawa Naoya)] Kuttsukiboshi -Kikenna Senpai- (Kuttsukiboshi)
(C90) [Ishikawa Pro (Ishikawa Naoya)] Kuttsukiboshi -Kikenna Senpai- | -Dangerous Senpai- (Kuttsukiboshi) [English]
(C85) [Ishikawa Pro (Ishikawa Naoya)] Kuttsukiboshi -Naisho no Oshigoto- | -Secret Work- (Kuttsukiboshi) [English] {Hikikomori Honyaku}
(C95) [Ishikawa Pro (Ishikawa Naoya)] Kuttsukiboshi -Shouwa Ecchi- (Kuttsukiboshi) [Chinese] [沒有漢化]
(C84) [Ishikawa Pro (Ishikawa Naoya)] Kuttsukiboshi -Yoru wa Kimama ni- | -Nightly Indulgence- (Kuttsukiboshi) [English] {Hikikomori Honyaku ft. Hanabi}
(C88) [Ishikawa Pro (Ishikawa Naoya)] Kuttsukiboshi -Yuudachi Hanabi- (Kuttsukiboshi) [Chinese] [夢之行蹤漢化組]
(C88) [Ishikawa Pro (Ishikawa Naoya)] Kuttsukiboshi -Yuudachi Hanabi- (Kuttsukiboshi)
(C84) [Ishikawa Pro (Ishikawa Naoya)] Kuttsukiboshi -Yoru wa Kimama ni- (Kuttsukiboshi)
(Touhou Goudou Event 2018 Haru!) [Sen (Senbei)] Tengu Kakushi (Touhou Project)