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As a child, Oyassan worked at Hou Houran with his father. Frequent visotors of their shop were Makiharu Hiizumi, Jinroku Yotsuya and Usuzumi Iyo. Makiharu brought Okami-san to stay with them after exorcising her. Oyassan and Okami-san would eventually marry and take proprietorship of the restaurant.
Hime assigned Rin Azuma to live with them when she arrived in town, where the Oyassan and Okami-san gladly welcomed Rin into their home.