(TWINKLE MIRAGE5) [LEGO! (Nakagawa)] Ingaritsu Refrain (Final Fantasy XV) [Chinese]

[Natsuiro Otome (Nakagawa Ryna)] Ochita ri sei [Digital]

[Natsuiro Otome (Nakagawa Ryna)] Ochita ri sei | Loss Of Reason [English] [Digital]

[LEGO! (Nakagawa)] Baby's Breath (Uta no Prince-sama) [English]

(HaruCC22) [LEGO! (Nakagawa)] Houkago, Kimi to Kotaeawase o Shiyou. (Final Fantasy XV) [English]

[Nakagawaya (Nakagawa Kei)] Ginko-chan to Ichaicha suru Hon (Ryuuou no Oshigoto!) [Digital]

(Ou no Utsuwa 11) [LEGO! (Nakagawa)] Another Heaven (Fate/Zero) [Chinese] [小攻未滿漢化組]

(SC2018 Summer) [Nakagawaya (Nakagawa Kei)] Anedeshi to Koibito ni Nareta nara (Ryuuou no Oshigoto!)

[Nakagawaya (Nakagawa Kei)] Ryuuou no Yoru no Oshigoto! (Ryuuou no Oshigoto!) [Digital]

(HaruCC22) [LEGO! (Nakagawa)] Houkago, Kimi to Kotaeawase o Shiyou. (Final Fantasy XV) [Chinese]