Aika Victorique was once a happy child. The date of her 9th birthday, was the most disasterous moment of her entire life. Sa eksaktong araw ng kaarawan niya nagkaroon ng isang disasterous plane crash sa bayan ng Sundwell. Nadamay ang kanyang mga magulang sa trahedyang nangyari. Almost 6000 people died on that very day. She started getting depressed after she heard about her parent's death.
As she grew up at the age of 15, nabubully siya sa school dahil sa kanyang birthday. Tinatawag siyang "Reaper's Daughter" dahil sa nangyaring trahedya noon. Ngunit isang Transfer student ang bumago ng lahat. He took her to a whole new world.