Ah, Vanilla straight from the future, nice.
I love how things progressed though. So the future Hayase interfered with her past self so she couldn't go out with him, but...He took it as the future Hayase having accepted in her place. So much for not wanting the past to change, eh? Best part was the thing that caused him to even confess in the first place was her time machine.
And I can also respect him for backing down when he realised she was just saying that to stop the past from changing, because he does respect her feelings, but she still caved and gave us some sweet Vanilla loving, so it's all good.
Great ending though. So they reunited, and the first thing out of her mouth is that he really aged. Well hey, when you just jump back ahead 5 years and compare him to 5 years ago, sure he'll look older. I'm sure he still loves you as much as he did back then. I must say though I wanted to see a scene where he finally fulfils the last part of his promise and confess to her in the future too, but oh well. Nothing a sequel can't fix...?