[Machine Translation] What are you going to do during summer vacation? The three are the three best friends of an ordinary male student "Tatsukan Oikawa", a cheerful childhood friend "Umiki Mukosaka", and a nihilistic bad friend "Chihiro Sakaki", who consult with each other every day about "What to do during summer vacation? The group of five friends (?) is a once-in-a-lifetime group. The group of five good friends begin their once-in-a-lifetime, sweet and sad summer vacation plan.