この恋は不純な物でできている

Moriya couldn't make friends even after entering university and was living a lonely life. One day, he met Takeuchi of the same department. Moriya wants to get along with the friendly Takeuchi, but he starts to develop stalker-ish behavior. Moriya finds out where Takeuchi lives, walks by in separate occasions Takeuchi’s house and kept one of Takeuchi’s belongings. Why can’t Moriya control himself!? And why does he keeps thinking about Takeuchi’s opinion about his strange behavior!? Note: Includes two chapters of "Bokura no Aoi Natsuyasum" and one extra chapter.