These cats with bells are experts raised by the company to encourage the staff. Each floor has its own "meow bell," giving everyone the chance to have some quality kitty time to replenish their energy when feeling down. Of course, it's hard to say whether they're actually curing depression or causing trouble, but after all, what kind of bad intentions could a cute little kitty have? However, in the cats' eyes, they're the real "executives" at this company~

(Source: Bilibili Comics)

Note: Chapter count includes a Christmas special.