No one seems to understand Nakami. His nights are restless, his days sleepy, and his time at school is isolating. Yet all that seems to change when he encounters his carefree classmate, Magari, dozing off in their high school’s abandoned observatory. Not only is Magari friendly, she’s also a closet insomniac. Together they find solidarity in their shared condition, using the observatory to nap as needed. When their unsanctioned use of the space is discovered, the only way to save their refuge is to revive the school’s long defunct astronomy club. As they work together and get to know each other, their bond grows ever stronger, but hidden truths threaten to cut their budding friendship shot.
25-year-old Sachi works at a local construction company. Her mother died when she was young and she lives alone with her father, Kohei. Kohei is a very conservative person and does not like trying out new things. Due to this, Sachi has never eaten avocado and kiwi. One day, a drag queen name Cool Mint appears in front of Sachi in super flashy makeup and costume. This becomes a turning point of Sachi who finds motivation to leave her town to Tokyo and explore doing what she likes. Meanwhile, Sachi realises that she is about to fall in love with her roommate, Ken, but Atsushi appears and a love triangle is formed.
Onigawara Momoka is a highschooler and she has the blood of an oni. She tries to hide her true identity while going to school and experiencing life with friends.
Akari is a first grade high school student. She is positive, realistic and outgoing with romance. Akari though is not good at expressing her feelings. She become friends with Yuna, who attends the same high school.