This film is a special chapter of the fan work "Codename Monster", the main chapter "Smile Again Day", focusing on the main character Neo, and the time is five years before the start of the main work.
The story itself is a huge puzzle, and readers are invited to participate in uncovering the various mysteries.
Daniel Davids, the eldest son of General Lucifer, turned out to have had a past with Neo before coming to Black Wing. As a famous espionage officer, why did Firefox Neo get close to a lustful second-generation official, and why did he become Black Wing's test subject five years later? This article will reveal it to you one by one...