As the song for the Third Trial of the audience-participation music project "MILGRAM," a vocal single by "Kotoko (CV: Aimi)" is released! Continuing from previous singles, it features a cover of a DECO*27 song, "Monitoring," along with an original voice drama written by original creator Takuya Yamanaka. A long-awaited single for fans of "MILGRAM," whose story reaches its climax upon arriving at the Third Trial. Includes a slipcase. Comes with an 8-page booklet.