Kekkon Zentei x Aimitsu Gishiki

To help save her family's failing business, Sawako agrees to undergo a Shinto rite in which she will be symbolically married to the god of her family's shrine, a deity responsible for good harvests and business success. However as soon as the ceremony is complete the god appears in person to claim her as his bride--and as far as he is concerned there is nothing "symbolic" about it!