She's a good Christian girl confirmed.
Hurry up and marry her.
Also nice to see Nino actually be useful. I don't remember much from this manga, but I remember not liking Nino at all.
And thank you for the TL.
They're girls, romcom protags usually aren't. If a couple of guys put handcuffs on random schoolgirl with the intention of taking her to a secluded place to have 'sex', everyone would cry bloody murder if they didn't end up as bloody salsa on the ground, comedy tags be damned..