[@Kouki] Months? I never gave such an extravagant timescale. It was more of a case where a few people went missing around a certain area, and Zane got captured during investigation. And before he captured live students he only used samples gathered stealthily from the Death Scythes. Considering that Zane didn't have the power of a Demon Weapon at the time, he wouldn't be on a story arc length mission.

If it's a problem with him being a teacher, I could turn him into a crazy scientist operating in a secluded part of Death City. As for not being allowed to make events, isn't the history of a character [i]entirely[/i] events?