haha, nice entry, already using magic which is forbidden against a student council member. but hey, they created a nice memory for their Sister so that's fine i guess. :3
they have a reason of being more active as they see it as their last chance so yeah...
I wouldn't mind Tatsuya & Angelina though.
Sure she is very tsun at the beginning (having an actual reason to be) but she is in the end cute girl in her teens!