Responses
The thing is that Ichijou is the kind of guy who is sick of people treating him differently then everyone else. Unlike other manga where the guy or girl has a horrible personality and actually believes that they can have anything they want, Ichijou wasn't like that. He wanted to find one person that treated him like a normal person. Also his friends also play a part because like other manga either the guy or girl doesn't have friends or their friends are God Horrible.
It's not believable how Ichijou falls in love with Hayashi. He just met him, and already liked him because of some stupid "he's not afraid of my dad's power" thing.