川本筑美是一个不善于交际，也没有朋友的女人。当她在Instagram上看到昵称为“白马”的账号时，她被照片记录的诱人美食所吸引。这些图文引起了她的共鸣。筑美开始自己吃饭，吃的食物和“白马”一样。另一方面，“白马”的帖子获得的唯一的“赞”就是筑美的“赞”；管理“白马”账号的 白石和间对此感到高兴，并殷切期待着筑美的“赞”。

Kawamoto Tsugumi is a woman who is not good at interacting with people and has no friends. When she comes across an Instagram account nicknamed "White Horse", she is fascinated by how the meals are captured very attractively in the photos. The posts and captions resonate with her. Tsugumi starts to go for meals on her own by eating the same food as "White Horse". On the other hand, Shiraishi Kazuma who manages the "White Horse" account, is delighted about and eagerly anticipating the only "like" he gets for his posts from Tsugumi.