Go to apartment map. Catch ghost. Talk to Momoko in room 201 until she tells you to meet Len in 101.
If Faith quest done, you will see a pattern in class 3-2 that can be used in portal room. Go there, meet Kent. Place video camera near him. He will began threatening you. Return to college map and find them in 3-2. Talk to Alex, the skinny muscular guy. He ask Yui to have sex with you.
If Faith quest not done, then same but Kent appears in 3-2 instead. Rest is same as above.
Why doesn't she have any dialogue? How can I trigger it? And also, when Sunflower Street said the person I can visit anytime, which map is that on?