Yui's chapter ended with some good news about her college choice and what it means for you, lucky guy.
Yui's exam took place on a cold morning and you gave her some of your special charm. Er, I mean you gave her a good luck charm.
Yui's parents met at the college of her choice, so she thought she would meet someone special there too. Oops, too late. You're one special guy, alright.
Have fun with your forever happiness with Yui! Next time, you slip into a parallel dimension and meet someone else. It was good while it lasted, right?