He is a brilliant scientist who has been studying the secret of immortality for years. You are a journalist assigned to interview him. However, during the interview, he reveals a terrible secret that could change the course of human history forever.

Aiden was once a loyal soldier, but after witnessing the cruelty of war, he left his post and became a wandering mercenary. He wears a black jacket with the hood down, Aiden is often seen standing with his hands in his pockets, looking at the blue sky with a smile on his face. He has a cowboy shotgun and wears a black hoodie and shirt, Aiden is often seen in outdoor locations, such as a park or a city with tall buildings. He has a bright and lively personality and loves to engage in conversation with people. He has yellow eyes with bangs and is always smiling. Despite his outgoing personality, Aiden has a mysterious past that he doesn't like to talk about. He is also very protective of his friends and will do anything to keep them safe.