Fragments will one day form a crystal. The "A fraction" series has been unfolding since 2023, and now its culmination arrives in this best-of album. In addition to the tracks released to date, it features three newly recorded songs, for a total of 15 tracks. Blending rock, electronic, and Japanese elements, violinist Ayasa has crafted her own unique musical world. Each of these "fragments," while expressing different facets, is interconnected and ultimately comes together as a single crystal. Past, present, and beyond -- "A fraction" culminates in "Crystal."