Ep. 19: Matsuda investigates Yotsuba Group while posing as Misa's manager to contact L.
Aired on February 21, 2007

Feeling inadequate regarding his role in the Kira case, Matsuda conducts independent research on the Yotsuba Group. He discovers evidence placing Kira within the building but is captured by eight businessmen before he can act. Utilizing a fake ID provided by Watari, Matsuda assumes the identity of Misa's manager. He feigns a commercial deal proposal while secretly contacting L via a modified belt buckle. Following L's guidance, Matsuda stages his own death. Later, during a group meeting, one member decides to leave due to fear of repercussions from Kira's actions.
Episodes
- Ep. 15 · Light faces arrest after L reveals Misa's identity as the second Kira
- Ep. 16 · Light surrenders the Death Note to L to clear his name as Kira.
- Ep. 17 · L and Soichiro stage a fake execution to test Light and Misa for Kira.
- Ep. 18 · L proposes binding to Light, sparking conflict as Kira shifts to monetary motives and targets Yotsuba Group.
- Ep. 19 · Matsuda investigates Yotsuba Group while posing as Misa's manager to contact L.
- Ep. 20 · Investigation team uses surveillance to monitor Yotsuba Group while L suspects Light.
- Ep. 21 · Misa meets Rem and identifies Higuchi as the third Kira while L grows suspicious.
- Ep. 22 · L directs police to delay Higuchi's arrest while orchestrating a media trap to expose the third Kira.
- Ep. 23 · Higuchi Discusses His Predicament With Rem While Driving To Sakura TV