Shunkashuutou Daikousha, Natsu no Mai

Synopsis

In the past, the gods of the four seasons, spring, summer, autumn, and winter, gave their power to human beings. Those who manifested these powers were called the "agents of the four seasons," and they became the avatars of the seasons themselves, in other words, living incarnations of the gods. In the 20th year of the Reimei era, the island nation of Yamato, which floats on a great sea, is hit by a cataclysmic earthquake. The young avatar of Spring, Hanaba Hinagiku, has returned after an absence of ten years. The militant faction "Hwasai" attacked Summer and Autumn, which led to the unprecedented cooperation of all four Spring, Summer, Autumn, and Winter. The Four Seasons camp was victorious through many difficulties, but a problem remained. The Hazakura sisters, the avatars of Summer, have become the first "twin gods" in history. Is this a good or bad omen? The season is summer. Now, once again, the story of the avatars begins. (Source: Dengeki Bunko, translated)