What would you do if, one day, you find out that someone very precious to you, who you thought was dead, was actually alive? This is the story of an innocent highschooler who is about to get involved in the dark and dangerous underworld to save an irreplaceable figure in his life. (Btw, if you're wondering why the cover is flowers. It's begonia flowers - in literature, it's often used to signify caution and upcoming danger)