going to rank them

1. hajime. he would absolutely Suffer in a time loop and probably end up dying many times
2. nazuna. who wouldn't be quite as bad as hajime but would initally panic and then once it's fully set in he'd lose his patience with it pretty quickly
3. mitsuru. he's pretty good at taking things into his stride but i can see him getting tired of looping after a while
4. tomoya. he's always good with insane situations and would be the one who'd stay the most Sane