When Qian Yunshang's marriage to Ye Youming is arranged by the emperor, she is terrified that the bad blood between their families will lead to her being treated miserably in the Ye household. Torn between duty and concern for his daughter, Qian Aotian devises a reckless plan. He summons his firstborn daughter—her existence unknown to all but his own family—to be the stand-in for her younger sister. Due to her unusual powers, Qian Yun Xi was exiled by her family when she was a child. Deprived of filial affection, she made a life of her own amid the wilderness on Mt. Ling Yun. However, everything begins to change when she marries Ye Youming in her sister's stead. Harboring immense contempt for the family of Qian, Ye Youming refuses to acknowledge Qian Yun Xi as his wife and treats her coldly, going so far as to banish her from his palace grounds. But he can only resist her childlike charm and boldness for so long... [Written by MAL Rewrite]

The third movie of a four-part finale of Tamayura.

After finally completing the first route of his visual novel, Blessing Software's producer Tomoya Aki is optimistic about the future of his team and achieving their goal of creating the best game of the season. However, they still have a long way to go. For one, Megumi Katou still has an incredibly flat personality and is unable to fit the role of Tomoya's ideal heroine. The other members of Blessing Software, Eriri Spencer Sawamura, Utaha Kasumigaoka, and Michiru Hyoudou, often forget she is even there due to her lack of presence and character. Throughout the development of their game, Blessing Software learns the struggles of working in an industry where deadlines must be met and edits are made constantly, and the hardships of working in a group setting. [Written by MAL Rewrite]

The second movie in a trilogy.