When 24-year-old Aki heard an acquaintance had a vacancy in his condo, she jumped at the chance to move in ... but when she did, she learned that one of her new roommates would be Tomoya, her ex-boyfriend! He needs her help with a ... personal problem. He promises not to cross any lines, so Aki agrees to sleep in the same bed as him ... but their nights spent together are beginning to bring them closer in more intimate ways!