A ferocious girl who acts tough?
Tsundere. And I do so love seeing it together with the Vanilla and Osananajimi tag!
...The thing about what he said in the past was interesting though. Like...They both liked each other even as kids, but because of what the other kids said he asked her to stop being clingy thus potentially destroying their relationship.
Thankfully, however, they both still harbour similar feelings and can finally act on them now, in the sweetest most Vanilla filled way possible.
Great ending though. Come now, it's really obvious what school she wants to get into, especially when you consider that she'd want to spend more time with him, right?