| Ai wo MotteArekun & Yuika | Arekun & Yuika | Arekun・Yuika | Yuika・Arekun | - |
Ano ne.
[Anone.]Arekun & Yuika | Arekun & Yuika | Arekun・Yuika | Yuika・Arekun | - |
| Iki no ShikataYuika | Yuika | Yuika | Yuika | - |
| Itsumo Soba ni Iru Hito e.Yuika | Yuika | Yuika | Yuika | - |
| Jitabata.Yuika | Yuika | Yuika | Yuika | - |
Joshou.
[Prologue.]Yuika | Yuika | Yuika | Yuika | Takahiro Konagawa |
Juunanasai no Uta
[Seventeen's Song]Yuika | Yuika | Yuika | Yuika | - |
Koidorobou.
[Love Thief.]Yuika | Yuika | Yuika | Yuika | - |
Koi wo Shiteiru Mitai na no
[Feels like I'm in love]Yuika | Yuika | Yuika | Yuika | Takahiro Konagawa |
| Koi wo Shitte.Yuika | Yuika | Yuika | Yuika | - |
| Sniper.Yuika | Yuika | Yuika | Yuika | Takahiro Konagawa |
| Snow GlobeYuika | Yuika | Yuika | Yuika | - |
| Soba ni Ite.Yuika | Yuika | Yuika | Yuika | - |
Suki Dakara.
[Sukidakara]Yuika | Yuika | Yuika | Yuika | - |
Suki Dakara. (feat. Ren)
[Sukidakara (feat. Ren)]Yuika | Yuika | Yuika | Yuika | - |
Unmei no Hito
[The one]Yuika | Yuika | Yuika | Yuika | - |
