Beyond Birthday (ビヨンド=バースデイ, Biyondo Bāsudei) is the main antagonist of Death Note - Another Note: The Los Angeles BB Murder Cases. He was the second child taken in at Wammy's House, in an attempt to create a successor for L, and the serial killer behind the Los Angeles: BB Murder Case. Beyond Birthday has never appeared in the manga, anime, or film series to date, but the Los Angeles: BB Murder Case was briefly alluded to in both manga and anime.