Hotaru Hinase has lived nearly sixteen years without romance. She is satisfied alone as long as she can enjoy the little things in life with her beloved friends and family. In her mind, she is not meant to fall in love, nor does she understand the concept. While out with a friend, Hotaru witnesses the severe breakup of her schoolmate Hananoi, to whom she has never spoken. Afterward, she sees him sitting in the snow and holds her umbrella over him. To her surprise, this gesture results in him confessing his feelings for her at school the next day. Though Hotaru rejects him, Hananoi insists on letting her get to know him. He does whatever he can to woo her, from changing his hairstyle to finding her lost hairpin in the snow. Although she has no romantic feelings towards him, Hotaru believes that by spending more time with him, she will learn how to love. She agrees to date him and slowly begins to navigate what being a girlfriend entails, including how to reciprocate the kind gestures that Hananoi continues to perform for her.

Private detective Sousuke Kaburaya is simply trying to make ends meet when Sara da Odin, an imperial princess from another world, falls through a portal right on top of him. Unaware that she is an anomaly in a magicless world, Sara uses powerful spells in public, causing a commotion and forcing Sousuke to take her back home with him. With the help of the internet, manga, and modern Japanese conveniences, Sara grows accustomed to living in Japan and becomes Sousuke's assistant in the process. Meanwhile, Livia de Udis, Sara's personal knight, also comes through the portal but lands at a different location. There, she meets a homeless man who readily accepts her unique background and odd tendencies. Despite her situation, Livia quickly adapts and settles into the homeless lifestyle, a far cry from the noble position she used to hold. While Sara and Livia may be living different lives, their positive and ambitious attitudes leave a lasting impact on the people around them as they experience both the good and bad of Japan.

A crossover anime movie between Hanma Baki and Kengan Ashura.

Twenty-fifth episode of High Card.