Ep. 1: Neku Sakuraba enters the Underground and joins the Reapers' Game to survive.

Neku Sakuraba wakes up in the Underground, a separate plane from the Realground, and receives a mission to reach the 104 Building or face erasure. After being attacked by Noise monsters, he is saved by Shiki Misaki, and they form a pact that allows Neku to use Psychs. Shiki explains that they are participating in the Reapers' Game, where they must complete missions and survive for seven days. On the second day, Neku learns he can read non-player minds and meets Players Daisukenojo "Beat" Bito and his partner Rhyme. When Neku is influenced by Noise and nearly kills Shiki, Reapers Uzuki Yashiro and Kouki Kariya attempt to trick the amnesiac Neku but are stopped by a mysterious man. Later, band 777 helps Neku and Shiki defeat the Noise creature Vespertilio Canor.
Episodes
- Ep. 1 · Neku Sakuraba enters the Underground and joins the Reapers' Game to survive.
- Ep. 2 · Shiki reveals her identity as Eri and explains the Reapers' Game rules to Neku.
- Ep. 3 · Neku and Shiki face the Game Master after Rhyme is erased on the sixth day.
- Ep. 4 · Neku forms a pact with Joshua and faces Minamimoto's Taboo Noise.
- Ep. 5 · Joshua reveals his voluntary entry into the Reaper's Game at Hanekoma's cafe