The art of controlling the house

Zhang Yu, a home improvement design man who worked for 36 hours, fell asleep in the company. When he woke up, it was 8 p.m. when there was thunder and rainstorm, the mysterious system locked him "Ding! Dissuade others from taking the elevator!" the company has already left work. In the dark corridor, only the office of the beautiful boss is still on... also, this is the 24th floor change rules: a chapter will be added for every 100 recommended tickets, which will be cashed immediately. Every 20 monthly tickets plus one chapter will be cashed immediately. No capping.