Heterogeneous marriages stories which express marital relationship of human and snake handed down for generations in Okinawa can be classified roughly into < snake groom > type and < snake bride > type. As for the < snake groom > type, the identity which makes the virgin pregnant has been found snake, but the substance of snake has been found God, not kills the snake, there is distinct characteristic that the descendants are worshipped as God of Utaki. In other words, it is focused on the role of descendant that the heterogeneous descendant is worshiped as God of Utaki as identity of heterogeneous snake, rather than be focused on eradicating the heterogeneous snake groom.
In addition, < snake groom > type is characteristic in appearing the origin of annual events like Hamaori. The descendant of heterogeneous snake is described as young snake, not as God, but the chronological changes are reflected in the tales, which the snake is not recognized as God anymore. After all, it is interpreted as it is missing the sanctity of snake completely.
On the one hand, < snake bride > type of Okinawa does not emphasize special sanctity or spiritual power of heterogeneity like snake bride, but this study has found out that the snake eyes which make child grow safe and sound contain pecial divine power. In addition, this study has found that the appearance of snake bride like heterogeneity produced results which brought about the prosperity to leave the descendants to the world of mortals.