I totally expected it to be the new guy, not Maki-kun, but this makes it pretty interesting. And basically what everyone else said.. Love the consent, the "you're sweet" line. Basically, I love how real and free of cliches this story is. Definitely one of the best-written yuri stories I've read, so far.
I think my favorite part though, is how Yuu doesn't immediately fall in love in return, but things about it seriously and tries to be open-minded, and not afraid.
(And the credits page! giggle Always gotta watch the credits page)