Sou Kami no Elvina

Long ago, goddesses vied for dominance over the world. Some with fangs later adopted a guise of love to protect humans. A boy named Soujou Shouma meets and falls for a goddess who visits the human world. They promise to reunite, and he dedicates himself to becoming a man worthy of her. As a student, he becomes president of a company. In the present, the Heavenly Realm experiences disturbances, causing the goddesses to clash violently over who will rule. These conflicts reach the human world. Learning of this, Shouma uses his company to aid the goddesses. He partners with Elvina, a powerful goddess with similar interests, and as company president, he enters the fray.