Hanako route do want eh?
Hate to double post but it's been seventeen hours so bite me.
I think I accidentally got bumped onto the Emi path, unless the whole dietary/exercise plan thing is something that just happens. I don't know how it happened, I was trying for Hanako goddamnit. :<
1. Answer "Yeah, of course" when Muto (yer teach') ask about intro'ing urself
2. Ask about the library to deaf mute miss president (Shizune, via Misha of course) at the cafeteria
3. Go defensive when playing Risk against Shizune (you'll lose the game anyway with either choices though)
4. "I'm sorry, I didn't mean to startle you" when you meet Hanako in the library
5. Tell "She was cute" when you meet Kenji (teh hikki)
6. Go talk with Hanako when you get a chance to do so in teh classroom
7. Answer "Maybe" when Mister Nurse asks you to promise him to take good care of your well-being
8. Side with Lilly when she and Shizune gets into an argument. "Hey, cut me and Lilly some slack..."
9. "Sorry, I'm not in really good condition" when Lilly asks about your well-being (Answering teh other will lead to yer bad end which is going into yaoi mode with Kenji)
10. Go to teh library instead of town (Going to town makes you end up with Lilly instead)
11.


??
12. PROFIT!
I targe-- I mean, I planned to choose Lilly on my first attempt and did it!

You can go for Hanako the same way as how I did in the blockquoted list. Just watch for the 10th choice (to decide whether to go to town or the library.
Hope this helps.