Lu Sang x Ruan Shu
Ruan Shu, a poor student who was pulled into the door world, jumped repeatedly on the edge of the door world.
After passing the first door and returning to his daily life, Ruan Shu took out the small note he gave him and added his "brother", Lu Sang, who was a good person in the door world.
(The introduction is not specific? Read the details in the article.)
Intention:…