I, Liu An, am just an ordinary high school student, but I was involved in a shocking conspiracy after receiving a mysterious letter. The scene when we met him is still very strange when I think about it now, but luckily we became companions and survived many times of life and death. Along the way, everyone's company has made me grow a lot, but the closer I get to the truth, the more uneasy I feel. The secret he hides seems to be related to the beginning of everything...
Purpose: adventure, growth