HAHAHAHAHA Seems even Marisa has fallen into the whole flag-raising loop now. Ohh, this may not be best of character portrayal (seeing as how they are acting here... kinda childish), but it's just so dang funny! Marisa's face is just EPIC on that last panel!

I would be freaked out too if i started having romantic feelings for someone who practically raised me. Even if that person isnt by blood relation.

At least Sakuya isn't getting derailed. Just everyone else who's ever canonically so much as nodded at Rinnosuke.