Starting with a Breakup, How Can the True Heiress Be My Yandere Ex-Girlfriend

The fake daughter is destined to be defeated by the real daughter. This is the end of all fake daughters, and Xu Nian cannot escape it. But why is Xu Nian's defeat process different from others? When ordinary people come to this world of real and fake daughters, they must avoid the real daughter as much as possible. But the real daughter in this world is actually Xu Nian's ex-girlfriend! Xu Nian, the fake daughter and "ex-boyfriend", must be locked up in the basement and dismantled...