D_Cide Traumerei the Animation

When he was little, Ryuuhei Oda witnessed the death of his caring older brother, along with a mysterious mark that was left near his body. Now, he is a second-year high school student. He is outgoing and impulsive and loves to do kickboxing.

One night, on his way home, a peculiar creature bites Ryuuhei's leg and causes him to have a strange dream filled with odd entities. The next day, he is attacked by the same creatures in the real world. Jessica Clayborn and Aruto Fushibe come to his rescue and tell him that he is their new recruit. Jessica tells Ryuuhei to transform into a "knocker-up," a person with the ability to confront the monsters from the dreamscape. He uses his kickboxing skills to awaken his powers and save the city. When he does this, he notices a familiar mark, one that he can't forget.