Unattackable Characters

I am a social scum, a harmful youth, a well-known scumbag. On my twentieth birthday, I got another title - short-lived ghost. In order to find out which unscrupulous person wanted to harm me, oh no, in order to promote the harmonious coexistence of humans and ghosts, I formed an alliance with an unscrupulous mage who dressed like a beast and was a scumbag. Soon after, through the torture of the female ghost system, I finally found out that I was actually a time-traveling officer. Well, to be precise, he was a time travel officer during his lifetime. And my ally, Yan Chigui, is a character whose background, favorability, and abilities cannot be checked. That is, characters cannot be captured. The manipulator behind the scenes who made me lose myself in the mission world for eight lifetimes, each of which died precisely on the day I turned twenty, also surfaced...