The reclusive Hikari Tsutsui has an aversion to real-world girls. That is, until he meets the popular Iroha Igarashi. The couple quickly develops a close bond neither expected, one that challenges their preconceived notions of who people truly are. As their relationship grows and deepens, new and difficult challenges threaten to break them apart. While they are committed to overcoming everything that comes their way as a couple, will some things be too much for them to conquer?