System's Super Sect

I reincarnated and became the young sect master of a sect that dominates a region. I originally thought that with my solid backing, I will not have any worries in this life. However, sudden changes occurred and the sect declined. When the last ten disciples were forced to leave, only a deaf old man and a dog named 'Haha' remained in the sect, I suddenly discovered that the buildings in the sect could be upgraded! I'll upgrade the main hall! I'll upgrade my residence! I'll even upgrade my kitchen! A super sect is currently rising inexorably like the Sun... Welcome to my sect. I only accept disciples that are geniuses. Even super experts have to pay if they want to join. There's no free lunch in the world!