@Kagami Yato She's squeezing him using threat of investigation. Corruption with the power of law behind it commandeering a useful law breaker. Plenty of examples of this pattern in the real world, minus the harem and perfect success record.
Unfortunately for MC, she is more competent than his previous corrupt benefactor, and thus it's a less desirable arrangement for him.
Unfortunately for MC, she is more competent than his previous corrupt benefactor, and thus it's a less desirable arrangement for him.