"Criminal Index": ???
"Vices": Indulgence and Debauchery
"Clearance Reward": Eliminate the evils of Kamei Yuusaku to obtain Lv7 Social Charm
...
Using the opportunity of soaking in the hot spring, Fushimi Roku hid his gaze.
The two people with question marks as their criminal indices happened to be a couple, which made it hard for him not to think more about it.
Fushimi Roku pondered in his heart, whether it was the Kamei family or the Kazama family, both families were eccentric. Something must have happened before, and perhaps Kamei Yuusaku had some leverage over Kazama Tatsuya, which is why he was so reckless.
This case is difficult to handle.
If he really wanted to act, he could make Kamei Yuusaku disappear with some money. But what's the point? The case is at a standstill with no progress, and it would most likely conclude as an impulsive murder.