Wager
Light tries using the second Kira to find out L's real name. However, L is well prepared for Kira's next move and is able to get one of the Kira is in his custody soon enough.
Aired 24/01/2007EP 15 - Wager

2006
Death Note
Light Yagami is a genius high school student who is about to learn about life through a book of death. When a bored shinigami, a God of Death, named Ryuk drops a black notepad called a Death Note, Light receives power over life and death with the stroke of a pen. Determined to use this dark gift for the best, Light sets out to rid the world of evil… namely, the people he believes to be evil. Should anyone hold such power?
The consequences of Light’s actions will set the world ablaze.
(Source: VIZ Media)