Death Note: L FILE No. 15

Synopsis

L FILE No. 15 is a book that was released alongside of the film L: Change the WorLd. The book also contains two short manga chapters illustrated by Takeshi Obata, titled L: The Wammy's House (shows the events leading up to L becoming a detective) and L: One Day (chronicles the daily life of L). (Source: deathnote.wikia)