Besides, it's impossible to get near Kushiro's house or workplace anyway.

So if we're serious about this plan,

No, I agree with that plan.

If we kill each person in a different place, we'll have to clean up to 29 locations.

Doing it in multiple locations increases the risk of being seen by witnesses.

we need to gather everyone in a secluded area.

Hayami Syndicate + Kushiro Annihilation Strategy 29 people

Therefore, first......