"Aha! I've told you about that before, right?"
Amelie teased Freya regarding the prostitution service, which works depending on the prostitute's Constitution stat. The higher the Constitution stat, the higher the price of the service of the prostitute.
"...Shut it!"
Freya fiercely glared at Amelie, causing the latter to grin.
"There is also this kind of service in a black market."
Amelie spoke, not minding Freya's previous reaction. Ken, on the other hand, just listened to Amelie's words, though he was somewhat honestly curious about why such a thing was known to a student of an academy.
When Ken became part of Russell's Chaos Companion, he didn't know much even today about their past, but he was silently respecting them — if they wouldn't tell him, then he'd just hope that someday they would as an act of trust.