Ken Miyake has announced that he will release his new digital single "Saiwai" on May 15.

The announcement was made as a surprise during the opening day of TOBE's live event 'toHEROes ~TOBE 3rd Super Live~' at Vantelin Dome Nagoya. The release marks his first new song in approximately one year and three months.

Written by MONO NO AWARE, "Saiwai" is a mid-tempo ballad centered on themes of life and death. It features a dreamy sound and gentle vocals. The jacket artwork was illustrated by Atsuki Ito.