I, Who Guard the Demon Locking Tower, Release a Demon Every Day

Traveling through the world of Xianxia, ​​guarding the Demon Locking Tower, and obtained the backdoor system. When you open a backdoor for others and get benefits, you can also get system rewards. Ever since, a demon was released every day to help me reach the top of my life. Until one day, Gu Yifeng discovered that the Demon Locking Tower was almost empty... Don't panic, catch the monsters and monsters you let out and let them go again! All the monsters: "Boss, stop playing... We can't afford it anymore..." This is a cheerful story about cultivating immortality. Only the protagonist in this story is happy~ This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.