Lu Shaoqing was originally a Jinyiwei in Kyoto. Tired of the intrigues in the capital, he fled the capital with an orphan girl and lived in a remote mountain village incognito. Lu Shaoqing treated the girl as his own daughter and named her Lu Jun. In this way, the two lived a plain and happy life in the mountain village. Lu Jun grew up day by day and became a little girl in the blink of an eye. Facing the complexity of the world, all kinds of human relationships, natural laws, etc., Lu Jun was curious, puzzled and even a little scared. Lu Shaoqing acted as Lu Jun's umbrella and silently guarded her by her side.