In a futuristic Tokyo where police have been privatized and bitter self-mutilation is so casual that advertising is often specially geared to the 'cutter' demographic, Ruka is on a mission to avenge her father's assassination. Ruka is a cop from a squad whose goal is to destroy homicidal mutant humans known as 'engineers', that possess the ability to transform any injury to a weapon in and of itself.

Wataru Kamiya, a boy who lives with his father after losing his mother. Suddenly, his father left home for a while on a business trip abroad, and decided to live with Luna Hazuki, a female college student, as a boarder. I'm a lazy person who can't study or exercise, and if I'm interested, it's just naughty. Luna, who is pessimistic about her future, will stretch her body and become a one-on-one private professor. The sex appeal comic that hit the hearts of boys all over Japan is a live-action film!

A bunch of happy students enjoying themselves at a Christmas party until a sadistic Santa Claus comes and interrupts the festivities. Spruce Green becomes blood red when the plot is different from the naughty children they please.