Inou Mochi no Koji desu ga, Koutaishi ga Yasashisugimasu!

Lisha, born into a life of hardship as an untouchable, faces her darkest moment when she is chosen as a sacrifice to a river god. Just as she is about to be thrown into the water, a man named Prince Helios arrives in a flash of white light during a storm. He takes her to his palace, where she is surrounded by kindness and introduced to a new life. As she begins to adjust, her true identity is uncovered—she is Aleph, a demigod and the noblest being in the Empire of Agaia. While some aspects of her past are explained, she remains puzzled by the prince’s unusually kind treatment toward her.