Follows an aspiring manga artist named Keigo Yamashiro who dreams of making it big. Yamashiro is extremely talented, but what holds him back is his inability to create any villains due to his overtly cheerful personality. Due to this, he is currently stuck in the position of being an assistant to a manga writer.

One day Yamashiro receives an assignment from his boss to visit a home and sketch the family living there. When Yamashiro arrives at the house he finds all four family members dead, and a mysterious man. Startled by the incident, the unknown man makes his escape and Yamashiro calls the cops.

When questioned by police Yamashiro lies and says that he did not see the murderer. He does however use the murderer as a villain for his own manga titled "34". The manga series becomes a surprise hit and Yamashiro quickly becomes a top star in the manga world. However, murders extremely similar to incidents in the "34" manga begin to happen in real life, and Yamashiro is soon confronted by the mysterious murderer.

(Source: MyDramaList)