2011

• still
  • 12 october
  • a-side: still
  • tracks: 4

2012

• sakura regret (リグレット; cherry blossom regret )
  • 29 february
  • a-side: sakura regret
  • tracks: 4
• forget-me-not ～wasurenagusa～(forget-me-not ～ワスレナグサ～)
  • 22 august
  • a-side: forget-me-not
  • tracks: 4
• koibito ga santa claus (恋人がサンタクロース; santa claus is my lover )
  • 28 november
  • a-side: koibito ga santa claus
  • tracks: 4

2013

• taiyou to himawari (太陽と向日葵; sun and sunflower )
  • 7 august
  • a-side: taiyou to himawari
  • tracks: 4
• hatsukoi (初恋; first love )
  • 2 october
  • a-side: hatsukoi
  • tracks: 1
• shirayukihime (白雪姫; snow white )
  • 25 december
  • a-side: shirayukihime
  • tracks: 6

2014

• nettaigyo no namida (熱帯魚の涙; tears of a tropical fish )
  • 11 june
  • a-side: nettaigyo no namida
  • tracks: 6
• akikaze no answer (秋風のアンサー; answer of the autumn wind )
  • 12 november
  • a-side: akikaze no answer
  • tracks: 5

2015

• sayonara, alice / tomorrow ~shiawase no housoku~ (さよなら、アリス / TOMORROW ～しあわせの法則～ ; goodbye, alice / tomorrow ～ law of happiness～ )
  • 15 february
  • a-sides: sayonara, alice ; tomorrow
  • tracks: 5
• blue sky blue
  • 29 april
  • a-side: blue sky blue
  • tracks: 5
• hitomi no oku no ginga (milky way) (瞳の奥の銀河 (ミルキーウェイ); the galaxy in your eyes (milky way)
  • 16 december
  • a-side: hitomi no oku no ginga
  • tracks: 4

2016

• yasashisa de afureru you ni (やさしさで溢れるように; like it's overflowing with kindness )
  • 1 june
  • a-side: yasashisa de afureru you ni
  • tracks: 5

2017

• monochrome /colorful (モノクロ / カラフル)
  • 11 january
  • a-side: monochrome
  • tracks: 5
• moon jellyfish
  • 26 april
  • a-side: moon jellyfish
  • tracks: 4
• taiyou no aitouka (elegy) (たいようの哀悼歌（エレジー）; the sun's elegy )
  • 23 august
  • a-side: taiyou no elegy
  • tracks 4