As high school graduation is approaching, Ohkouchi Wataru (Tomoya Nagase), who has been working part-time to raise tuition fees, hopes to realize his dream of working at the observatory. However, the poor economic situation makes Wataru realize that he can't even take the university entrance examination, but even so, he still works hard. Like most candidates, Nanakura Sonoko (Miki Sakai) shoulders the pressure and burden of further studies. Her parents have great expectations for this daughter born in a doctor's family, which invisibly increases Sonoko's pressure. At such a critical moment, she can only grit her teeth and bear it silently. By chance, Wataru and Sonoko bumped into each other on the campus at night. The two who had never met in the same class knew each other and gradually developed a youth story with laughter and tears.