Shimizu Ayaka (清水彩香)
Hajimari no kane / Uguisumaru Tomonari,
Ookanemitsu, Gokotai Yoshimitsu
Release date: January 14, 2021
01 Hajimari no kane with Sugiyama Riho
&
Nomura Mayuka
02 Hajimari no kane (instrumental)
Endless Summer 1899 / Uguisumaru Tomonari,
Namazuo Toushirou, Hotarumaru Kunitoshi
Release date: July 24, 2019
01 Endless Summer 1899 with Watada Misaki
& Tachibana Meemu
02 Endless Summer 1899 (instrumental)