A harem MC is the self-insert character you want to be.
Taira is the character you actually are.
At least he's
1. Incredibly self-aware (probably tp a fault)
2. Made significant steps to improving himself
Tairazuma needs some development ASAP.
Other than that, excellent chapter.
W Tani and Yamada for coming to check on Taira
W Taira for saving the manager and sorting the boys out