Vol.4 Koki & Ryota

vol.4 Koki & Ryota (vol.4 昂輝&涼太) is a 2018 CD.

Overview
Growth's fourth entry in their RE:START series, all of which are based on "Time" (時間 Jikan). As with most singles, the CD only features one new song, along with the off-vocal version.

Cast

 * Eto Koki (C.V. Toki Shunichi)
 * Sakuraba Ryota (C.V. Yamashita Daiki)

Tracklist

 * 1) Apostasy
 * 2) Apostasy -off-vocal-

Trivia

 * The flower featured on the front cover is bayberry.
 * In a promo poster for the CDs release Ryota informs Koki that bayberry pollen will travel miles in search of female flowers. Koki responds by calling the flower "devoted to the other half" and finds it to be a romantic and wonderful story.