Automatic Branch
If you went through the scene titled "One Sweet Afternoon," take a right. If you didn't, take a left.
Some may find that these directions are too simplistic, that there are far more factors in this branch than just whether you saw "One Sweet Afternoon" or not. I'm afraid that I can't really look into the details at the moment, although other Akai Ito fans have been giving me various tidbits of information regarding certain branches.
At the very least, if I've lead you astray here, you'll realize it immediately. Just hit "back" on your browser and go the other way. I'll try to fill the gaps in later.