ReoNa to release new single! Includes "Seimei Sen," which is the main theme song for the game software "Tsukihime - A piece of blue glass moon -." Also includes B-side track(s). This edition comes with a bonus Blu-ray featuring a music video for "Seimei Sen" and a textless intro of the game. "Tsukihime" illustrated box packaging with a lyric booklet and a "Tsukihime" large T-shirt.