People thinking this is NTR when knowing manga it's more likely bait. Safe money is the man is just the guy's imagination because she got all embarrassed when he assumed she'd be with someone, when really she's probably just got a date with her dildo.
I’m pretty sure what most people consider ntr is when Male mc can fuck anyone anywhere anytime and female mc can’t so much as talk to another dude.... that’s what I consider ntr as