Kasuka na Hisoka na Tashika na Mirai

 (微かな密かな確かなミライ) is the 15th single released by sphere. It was released on May 14, 2014, and peaked at #15 on the Oricon single chart.

Single Information
The lead track Butterfly Effect was used as the ending theme for the anime Nanana's Buried Treasure.
 * Catalog Number:
 * LASM-4168 (Regular Edition)
 * LASM-34168/9 (Limited Edition)
 * LASM-34170 (Limited Pressing Edition)
 * All Lyrics: Furuya Shin
 * Composition: Moriya Yasuaki (Track 1), Toyama Daisuke (Track 2), Matsumura PONY (Track 2)
 * Arrangement: Kurosu Katsuhiko (Track 1), Furukawa Takahiro (Track 2)

CD

 * 1) Kasuka na Hisoka na Tashika na Mirai (微かな密かな確かなミライ)
 * 2) synchronicity
 * 3) Kasuka na Hisoka na Tashika na Mirai (Off Vocal)
 * 4) synchronicity (Off Vocal)

Limited Edition DVD

 * 1) Kasuka na Hisoka na Tashika na Mirai (Music Video Clip)