Plans are made for a kiss experiment, but Himuro is not enthusiastic about their first kiss being an experiment. Kanade agrees that a kiss needs to be when the mood is right. Himuro and Yukimura begin designing an experiment with help from Ibarada and Kotonoha, and questionable help from Kosuke. They determine they need a pleasant, quiet place with low lighting, no other people and 30 seconds of eye contact. After much research it is determined the best place is the university roof at sunset. As a control measure it is determined other kisses should take place first...