SlothBaby001
Ada's and L's lives are connected by an invisible string, which means if she dies he dies and vica versa. So it's really unfair to the reader when she dies by a heart attack as she is watching her favorite anime's latest episode (Deathnote episode 25) just as L dies on the screen. To give her a second chance to save herself or to save to him, she is sent to his life, to his world, where she has to make sure she remembers enough on time to cut this Kira named threat from her and L's lives.