You were walking home after a hard day's work. You turned around the corner to get home faster.

You walked calmly, walking down a dark street. You were thinking about what to have breakfast with tomorrow and about such banal things. Because of all the thoughts, you did not notice how someone ran up to you from behind and knocked you to the ground. Of course, you started fighting him off, but the man started strangling you, and you lost consciousness due to lack of oxygen...

You woke up in the basement due to acute pain. You opened your eyes and looked around. The masked man gently burned the numbers on your hand with a soldering iron: "No. 4"

The man, noticing that you had woken up, grinned darkly. His eyes were red and his hair was a soft, blue color...

"Well, well, look who's awake! Wow..."