released on January 29, 2014.
![Egao no Kimi wa Taiyo sa / Kimi no Kawari wa Iyashinai / What is LOVE? [Regular Edition / Type A] Egao no Kimi wa Taiyo sa / Kimi no Kawari wa Iyashinai / What is LOVE? [Regular Edition / Type A]](https://www.j-enta.com/fotos/5393.jpg) | Egao no Kimi wa Taiyo sa / Kimi no Kawari wa Iyashinai / What is LOVE? [Regular Edition / Type A] Catalog: EPCE-7024 | |
![Egao no Kimi wa Taiyo sa / Kimi no Kawari wa Iyashinai / What is LOVE? [Regular Edition / Type B] Egao no Kimi wa Taiyo sa / Kimi no Kawari wa Iyashinai / What is LOVE? [Regular Edition / Type B]](https://www.j-enta.com/fotos/5394.jpg) | Egao no Kimi wa Taiyo sa / Kimi no Kawari wa Iyashinai / What is LOVE? [Regular Edition / Type B] Catalog: EPCE-7025 | |
![Egao no Kimi wa Taiyo sa / Kimi no Kawari wa Iyashinai / What is LOVE? [w/ DVD, Limited Edition / Type A] Egao no Kimi wa Taiyo sa / Kimi no Kawari wa Iyashinai / What is LOVE? [w/ DVD, Limited Edition / Type A]](https://www.j-enta.com/fotos/5395.jpg) | Egao no Kimi wa Taiyo sa / Kimi no Kawari wa Iyashinai / What is LOVE? [w/ DVD, Limited Edition / Type A] Catalog: EPCE-7016 | |
![Egao no Kimi wa Taiyo sa / Kimi no Kawari wa Iyashinai / What is LOVE? [w/ DVD, Limited Edition / Type B] Egao no Kimi wa Taiyo sa / Kimi no Kawari wa Iyashinai / What is LOVE? [w/ DVD, Limited Edition / Type B]](https://www.j-enta.com/fotos/5396.jpg) | Egao no Kimi wa Taiyo sa / Kimi no Kawari wa Iyashinai / What is LOVE? [w/ DVD, Limited Edition / Type B] Catalog: EPCE-7018 | |
![Egao no Kimi wa Taiyo sa / Kimi no Kawari wa Iyashinai / What is LOVE? [w/ DVD, Limited Edition / Type C] Egao no Kimi wa Taiyo sa / Kimi no Kawari wa Iyashinai / What is LOVE? [w/ DVD, Limited Edition / Type C]](https://www.j-enta.com/fotos/5397.jpg) | Egao no Kimi wa Taiyo sa / Kimi no Kawari wa Iyashinai / What is LOVE? [w/ DVD, Limited Edition / Type C] Catalog: EPCE-7020 | |
![Egao no Kimi wa Taiyo sa / Kimi no Kawari wa Iyashinai / What is LOVE? [w/ DVD, Limited Edition / Type D] Egao no Kimi wa Taiyo sa / Kimi no Kawari wa Iyashinai / What is LOVE? [w/ DVD, Limited Edition / Type D]](https://www.j-enta.com/fotos/5398.jpg) | Egao no Kimi wa Taiyo sa / Kimi no Kawari wa Iyashinai / What is LOVE? [w/ DVD, Limited Edition / Type D] Catalog: EPCE-7022 | |