Global Supernatural: Start Playing Mahjong in a Haunted House!

This is a modern city where ghosts are rampant. At the same time, powerful demons lurk in various hidden spaces. The world is in crisis. After Su Yang traveled to this world, he has been living a low-key salty life. With the help of the system, he reached the state of invincibility early. One day. Su Yang was in a haunted house, playing mahjong with several ghosts, but someone saw him. No, it seems I can no longer hide my identity as a boss! This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.