How hard is it for a young lad to make a tear gas? Make a trap by shutting the window and trigger a trap that'll shut the door and activate the gas.
Trying to bring out my inner Tom and Jerry with Wile E. Coyote bug brain moment.
Of course the former "delinquent" would have high favorability to the only one who didn't treat him poorly, and now that he's TS'ed, that favorability has now became affection for her.
As they say, a little kindness goes a long way. 😗
As much as it sounds fun, it is genuinely not. Unless it's controlled on how many then there's no harm ig. Seriously, a huge population of succubi is just as bad as like world end, instead of a non physical thing killing the male population, this one you can clearly see how they're being culled...