It is said that when one places a piece of paper indicating "Koko-wa Shobo-no Sato" on the door as a talisman, Wanyudo cannot go near the house; this derives from the anecdote in Shuyo Retsuden (a series of biographies of Shuyo) of Shiki (the Chinese Historical Records), according to which So-shi, a disciple of Koshi, the founder of Confucianist in China, disliked Shobo-no Sato and did not set his foot in the place because of the name suggesting "to win against mother".
「此所勝母の里」と書いた紙を呪符として家の戸に貼ると、輪入道が近づくことができないといい、これは中国の儒家の始祖・孔子の門人である曾子が「母に勝つ」の名を嫌って勝母の里に足を踏み入れなかったという『史記』「鄒陽列伝」での逸話が由来とされている。