Picked up a Demon Locking Tower

[No waste material, no harem, no tricks, no stud] As the second generation of rich people and the second generation of officials, Qin Xiu lives a happy and worry-free life. Until he picked up a demon-locking tower, his life became more exciting. When I have nothing to do, I find a banshee to flirt with me. If anyone dares to bully me, I find a demon boss to beat him up...