[Unknown (UNKNOWN)] Jounetsu Shindo 1.5
(C85) [Ishikawa Pro (Ishikawa Naoya)] Kuttsukiboshi -Naisho no Oshigoto- | -Secret Work- (Kuttsukiboshi) [English] {Hikikomori Honyaku}
[Unknown (UNKNOWN)] Shi no Go no Itteru Baai ja Nai 2
(C84) [Ishikawa Pro (Ishikawa Naoya)] Kuttsukiboshi -Yoru wa Kimama ni- | -Nightly Indulgence- (Kuttsukiboshi) [English] {Hikikomori Honyaku ft. Hanabi}
[Unknown (UNKNOWN)] Yogari Sugite Okashiku Narisou 4
(C87) [Ishikawa Pro (Ishikawa Naoya)] Kuttsukiboshi -Ichaichaboshi- (Kuttsukiboshi)
(C90) [Ishikawa Pro (Ishikawa Naoya)] Kuttsukiboshi -Kikenna Senpai- (Kuttsukiboshi)
[Unknown (UNKNOWN)] Tobira to Kamen | Doors and Masks [English] [Anzu]
[Unknown (UNKNOWN)] Jouge Kankei ZERO
[Unknown (UNKNOWN)] Jounetsu Shindo