Haruna Luna brings a mini-album with collaboration songs with great artists! The title song is made in collaboration with KOTOKO for PS4/PSVita Game "Accel World vs. Sword Art Online: Millennium Twilight." Also features AKIRA, Haruka Tomatsu, Rika Mayama (Shiritsu Ebisu Chugaku), Sachika Misawa. Comes with a bonus DVD and a photo card.