I enterpret Iwai wanting to go the same school with Omiya is probably not because of yuri. but because the rest of their friend group has their own partner whether they're possible love interest or not( even though all of the duo we have so far genuinely give possible couple vibes, especially...
acting big, thinking you'll scare your enemy and shallow your ally is only lead to your downfall further as they'll figure your not all big, just someone who's afraid death
the timing is so fucking random. like they were just leaving for groceries yet 003 or whoever this time is seems set up a trap for them leaving for random occasion