"Jack the Thief, a Sage Level Relic, only appears in human settlements with populations exceeding thirty thousand. It usually appears at night and steals without any pattern. Even if someone encounters it, that only makes it flee faster. Under normal circumstances, it will not harm anyone. The things it steals must possess special value, and it is a thief that grows stronger against stronger opposition. Even when facing Ring Arcanists, if a home has no special anti-theft measures, it will only use the methods of an ordinary person to steal. But if someone exaggerates their defenses with an Angel Level (Level 1) Relic in order to conceal a secret, then Jack the Thief, rated Sage Level (Level 2), can display bizarre powers that surpass Angel Level."
Iluna explained:
"'Jack' is not its actual name. It is merely called that because Jack is a relatively common male name. The implication is that this Relic hides among countless ordinary people."
"I understand. Like how 'Mary' is one of the most common female names. That sounds interesting—stronger against stronger opponents. Does it have any other traits?"
Shade asked with great interest.
"Of course. Its true negative trait is that those robbed by Jack the Thief may undergo slight changes in personality. At first, they regret not protecting their possessions properly. Then that regret ferments into remorse over losing their property, until it turns into a desire to make up for their losses by stealing from others."
"Assimilated by Jack the Thief?"
Shade asked. Iluna nodded cautiously.
"It is not merely the bad habit of kleptomania. Their internal bodily structure will also change, and their entire souls will gradually be permeated by the Whisper Element. Jack the Thief itself is only a thief, but the Relic Derivatives infected with its kleptomania are all mysterious