Second part of Yoroi Shin Den Samurai Troopers.

You're the bride I've been searching for all this time. A Japanese-style ayakashi Cinderella story! The ayakashi and humans coexist in harmony. The ayakashi, having superior abilities and beautiful appearances, sometimes find their partner among human women, making them their bride. The bride, in exchange for bringing prosperity, receives absolute love from the ayakashi. Yuzu is constantly compared to her sister, a bride of a demon fox, and is resented by her family every day. One day, when Yuzu just couldn't take things anymore, a man appeared before her on a bridge. This man is the most beautiful man Yuzu has ever seen... and he's calling her his wife?! Just be quiet and let me hold you. The most powerful, cold-hearted ayakashi is pouring his heart out for Yuzu?! (Source: MangaPlaza, edited)

Winter was once the only season in the world-but such an existence was too lonely to bear, and so it created Spring to love. Before long, the earth wished for more time to rest in the cycle, and Summer and Autumn were born. The ones who carry the cycle are called the Agents of the Four Seasons. Hinagiku, the Agent of Spring, disappeared from this land ten years ago, taking the season of spring with her. Now, after incredible hardship, she has returned to restore the cycle to its proper state-and, as in the myth passed down since the dawn of time, she sends her love to Winter. (Source: Yen Press)

An anime movie adapting the Yotsuba Succession Arc.