When Teruaki Nakamura transfers to laid-back Okinawa, he falls for the lively Kyan-san—but her dialect is a complete mystery to him. With Higa-san translating, Teru's misunderstanding-filled island life takes off...and subtle hints suggest Higa-san might want his heart too. On this serene island, love flows as freely as the ocean breeze! (Source: Crunchyroll)

Due to the dramatic rise of the sea levels, humanity has lost a significant part of its inhabitable lands, forcing it to rely on pre-existing technology to survive. Among the many people affected by the tragedy, Natsuki Ikaruga, a brilliant recent graduate who had lost a leg in a submarine accident, is now reduced to living a miserable life on a near-deserted island. After Natsuki encounters a mysterious woman named Catherine, he uncovers an advanced humanoid robot that belonged to his grandmother Nonko, a renowned climatologist. Atri, the salvaged robot with the appearance and demeanor of a young girl, reveals to Natsuki that Nonko has tasked her with an important mission, but she has forgotten what it was. Although Natsuki was initially planning to sell Atri, the opportunity to connect with his grandmother's research through Atri makes him rethink his decision. Natsuki once had to sacrifice his dream to partake in a prestigious scientific mission. But as he opens up to his fellow islanders, he discovers that he can still make a difference in a desolate world.

Despite not understanding much about fleeting teen romance, first-year high school student Kazuhiko Nukumizu still wonders how he would react if his life were to be turned into a love story. Regardless, as a self-proclaimed background character, Nukumizu is satisfied continuing his life as an introvert with a negligible social life. However, he suddenly finds himself too close to the spotlight when he witnesses his popular classmate Anna Yanami be rejected by her childhood friend in the middle of a family restaurant. While Nukumizu wishes he could just forget what he saw and move on, Anna ends up forcefully confiding herself in Nukumizu, lamenting her status as a childhood friend fated to have her beloved stolen. As he becomes dragged into Anna's situation, Nukumizu soon gets caught up in the relationship drama of two more girls: Lemon Yakishio, an outgoing member of the track and field club; and Chika Komari, a shy member of the literature club. Now thrust out of his comfort zone, Nukumizu finds himself a major character in the lives of too many losing heroines.

Much like the other students at her school, first-year student Saki Aoi finds herself captivated by the beauty of her senior on the school board, Makoto Hanaoka. While she worries that Hanaoka would be uncomfortable receiving a confession from another girl, Aoi musters up the courage to tell her anyway. However, Hanaoka's response surprises Aoi for a completely different reason—Hanaoka is actually a cross-dressing boy! Fully expecting Aoi to be abhorred by this revelation, Hanaoka is shocked to find that she has no issues with it. Though Hanaoka rejects Aoi's request to go out with her—citing his identity and the fact that he has never fallen in love before—Aoi insists that she will become his first love. Taken aback by Aoi's determination, Hanaoka wonders if he can really fall in love with her if he cannot find it in him to truly love himself first.