A young, 16 year old girl called Yuna, now finally takes control of her own life. Her mother sad about her leaving home to go to the private, mysterious school, Cross Academy! Excited and very pleased to be going to a new school, she is unaware of the dangers the school carries on its shoulders. Being forced to be shown around by none other than Shiki Senri, she somewhat falls for his stunning looks. When they’re attacked, Yuna must have her memory erased... But when she remembers, how will she react? Will Shiki see the love Yuna is giving him? Will a new, cuter boy come and try to take Yuna away from Shiki for good? Will Shiki understand that Yuna is worth a lot more than the world—or will he be too tempted to launch his fangs through her soft skin...? Will her mysterious abilities destroy her rather than in aid? When Yuna encounters her father for the first time, how will she react? How will he put all the Academy's students lives at risk? Why are there so many wolves appearing around the campus? What will happen at Cross Academy; the school of Day and Night class students, when she finds out the Night class students are all Vampires!

Light shocks his younger sister Akari when he reveals the truth to her: the fact that he's Kira. The two of them are brought to Investigation Headquarters under suspicion of being the first and second Kira. That's where Akari meets another likely suspect. He goes by the name of Beyond Birthday.