One day, a legitimate child of Nijo no Dianagon (major councilor of Nijo) Kaneie, born as a heaven-sent child from Bishamonten (Vaisravana) in Kurama region, Ogurihangan could not resist the beauty of a giant snake taking the shape of a beautiful woman in Bosatsu-ike Pond and ended up having a sexual relationship with her on his way home from Kurama region.
鞍馬の毘沙門天の申し子として生を受けた二条大納言兼家の嫡子小栗判官が、ある日鞍馬から家に戻る帰路、菩薩池の美女に化けた大蛇の美しさに抗し切れず、交わり妻としてしまう。