Todomomo

Todo. Momo can stare but she gets lost in his eyes, since they're different colors, and ends up blinking at some point. Shoto honestly stopped blinking~

Kirimina

Mina is an alien. She will win. I doubt she blinks unless she wants to.

Miruhawks

Hawk vs a bunny.

Hawks wins. She gets all distracted because of her hearing and blinks for a second and he catches it.

Iidamei

Mei doesn't blink a lot because of her work, he doesn't either. It can go on for a very long time.

Kamijirou

I- Denki can win, but sometimes just forgets their playing.

Dabi x Toga

Does Dabi have eyelids? I mean, he doesn't have tear ducts, maybe he's Jeff the Killer.
They both can win, depends on who gets distracted.

Nejitama

Nejire blinks a lot. (I headcanon she has ADHD. Her fidgeting, questioning, short attention span.) tam tam can win easily if he wants to.

Mt.Kamui

Does Kamui have eyelids-

Ryushot

Ummm... a ninja and a reptile? I think Ryuko doesn't need to blink or she blinks weird af. Dunno why, just have the feeling she blinks like Double Trouble from She-ra. That sideways blink-

Feel like they might be able to go for a while. Like thirty minutes or they call it off. Deadass can't tell me they don't do it before bed and then they act like Ryuko didn't just do a bunch of... weird things to make him blink.

HitoRei

Reiko doesn't need to blink- the demon possessing her doesn't blink. That's when Hitoshi finally realized that Reiko's eyes aren't red, they're blue. Wait-

Tetsukendou

Kendou. Those eyelashes need to shut a lot.

SetSero

Setsuna wins. She blinks weird af too.

Shintati

Tatami might, Shindou might. Yo has a bunch of stare downs tho. He can't blink or he loses. Yo wins.

Fatjoke

Emi has to strain her neck just to look at him because of his height. She lost.

Midotsu

Does this girl blink? I really don't think so. She can focus on multiple things too. I feel like she has a lazy eye that she can 'control' (?) like the guy who plays Pennywise. (That eye trick isn't cgi, he does it himself.)

Kacchako

Stare downs. Katsuki won.