The story follows Koichi Asakura, a designer for an ad agency who works hard but receives no recognition. After being dropped from a project, he visits a place from his past, where he met Eren Yamagishi. Eren, meanwhile, is recognized as a genius left-handed graffiti artist in New York, while enduring the struggles that come from her own path in life. (Source: Crunchyroll)

The all-girls Kikyo Private Academy and Chidori Public High School are polar opposites. With its prestigious history, Kikyo is attended by noble young ladies from distinguished families, while Chidori is infamously full of simple-minded delinquents. It is no surprise that their students clash with their differences. Having a tall stature and fierce appearance, Chidori student Rintarou Tsumugi is often avoided by others despite his gentle heart. One day, while helping out at his family's patisserie, he meets a customer who, after a brief moment, runs away from him. The next day, the customer returns to apologize to Rintarou, introducing herself as the cheerful Kaoruko Waguri. After spending time with Kaoruko, Rintarou appreciates that she does not judge him based on his appearance and looks forward to when they will meet again. However, when Rintarou discovers Kaoruko attends Kikyo, their relationship will challenge the social expectations and dynamics around them.

Far from the city's noise lies Torishirojima—a quaint and peaceful island where time seems to move slowly. Hairi Takahara, a young boy nursing a wounded heart, uses the recent death of his grandmother as a quiet reason to leave the city for a summer retreat to Torishirojima. Upon reaching the island, Hairi finds himself surrounded by a refreshing, laid-back atmosphere, a far cry from the hustle and bustle he is used to. After moving in with his aunt, Kyouko Misaki, he prepares to spend the summer helping her sort through a shed full of artifacts his grandmother collected over the years alongside his cousin, Umi Katou, who is staying with them. While adjusting to the island's slower pace, Hairi decides to spend his free time exploring. He soon meets the cheerful Tsumugi Wenders; the antisocial Shiroha Naruse; the wandering Kamome Kushima; and the sharp-tongued Ao Sorakado. Drawn into their lives and the island's subtle mysteries, Hairi is gradually swept up in a summer filled with fun, nostalgia, and life-changing moments that will stay with him forever.

Ayakashi are strange, supernatural creatures invisible to the majority of people. Though most are harmless, some ayakashi attack humans to devour their life force. Exorcist ninjas are tasked with protecting people from these spiteful spirits. Matsuri Kazamaki is a young exorcist ninja born to a prestigious clan. His childhood friend, Suzu Kanade, is an ayakashi medium—an individual with immense vitality that attracts ayakashi. Matsuri deems all ayakashi threatening and wishes to keep Suzu as far from them as possible, but this clashes with her desire to remain close to them. One day, the pair encounters Shirogane, the King of Ayakashi, who is hellbent on consuming Suzu. As she is about to be eaten, Matsuri comes to the rescue and manages to seal the ayakashi's powers—but not before Shirogane takes revenge by turning him into a girl! Until he finds a way to transform back, Matsuri must adjust to his new, peculiar lifestyle while fighting against hostile ayakashi. Moreover, Suzu is now conflicted about her feelings toward Matsuri—further plunging their relationship into a state of ambiguity.