Lady Yin is a minor character featured within the famed ancient Chinese novel Fengshen Yanyi

Fengshen Yanyi

Fengshen Bang, also known as Fengshen Yanyi in Chinese, and translated as The Investiture of the Gods or The Creation of the Gods, is one of the major vernacular Chinese epic novels written during the Ming Dynasty...

. She is the wife of Li Jing

Li Jing (deity)

Li Jing , also known as the Pagoda-Bearing Heavenly King Li is a figure in Chinese mythology and a god in Chinese folk religion. He is not one of the Four Heavenly Kings. He carries a tower that can capture any spirit, demon or god within its walls. He also appears in the classic Chinese novels...

 and they have three sons, Jinzha, Muzha, and Nezha

Nezha (deity)

Nezha, Na Zha or Nata . He was then given the title "Third Lotus Prince" after he became a deity.Modern scholarship has shown that he is based on two figures from Hindu mythology, namely Nalakubar and Krishna....

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Throughout the Nezha birth arc in Fengshen Yanyi, Lady Yin would always be known to reflect many acts of kindness to her third son -- no matter what he truly did. Thus, Lady Yin would be seen protecting Nezha at many times throughout the novel, even when he performed horendous actions such as the killing of Ao Guang's third son, Ao Bing

Ao Bing

Ao Bing is a character featured within the famed ancient Chinese novel Investiture of the Gods ....

. After Nezha had given his own body as a sacrifice to Ao Guang in order to protect his family, Lady Yin would end up erecting a temple atop the Green Screen Hill as a stationing area for Nezha's spirit (this was because Nezha continuously pleaded to her in her sleep). Lady Yin would be scolded by Li Jing profusely following this point.