In the heart of Tokyo, Kyouko (21) and Jiro (23) share a home as partners without the bonds of marriage. While Kyouko thrives as a graphic artist in an ad agency, Jiro embarks on his journey as an illustrator. Set against a backdrop of an evolving society teetering on the brink of change, their tale unfolds through the lens of everyday interactions with loved ones, shedding light on the intricacies and challenges woven into their relationship.