Songs
- Hoshikuzuno BatonHIROBA
- Nankyokuni SakuhanaeHIROBA feat. Yusuke Miyauchi, Maaya Sakamoto & Ryo Eguchi
- IHIROBA
- Stella 2021HIROBA feat. Kiyoshi Shigematsu, Tasuku Emoto & Tomi Yo
- Hikaru NoharaHIROBA feat. Maru Ayase, Sairi Ito & Hiroaki Yokoyama
- AikaHIROBA feat. Hiroko Minagawa, Kayoko Yoshizawa & Hiroko Sebu
- Tomei KagyouHIROBA feat. Tahi Saihate, Soushi Sakiyama & Hakushi Hasegawa
- Nagi [Instrumental]HIROBA
- IHIROBA