Watari Rouka Hashiri Tai – 渡り廊下をゆっくり步きたい / Watari Roukawo Yukkuri Arukitai (복도를 천천히 걷고 싶어)
Release Date: 2013.12.25
Watari Rouka Hashiri Tai – 初戀ダッシュ/靑い未來 (첫 사랑 대쉬/푸른 미래)
Release Date: 2009.01.28
Watari Rouka Hashiri Tai – 靑春のフラッグ / Seisyun No Flag (청춘의 깃발)
Release Date: 2010.06.30