Peng Yue is an ordinary college student who has a soft mouth but a soft heart and behaves badly every day. His biggest hobby is to complain about all kinds of outrageous novels. Until one day, a strange prompt suddenly popped up on his mobile phone: "Congratulations on binding the 'True and Fake Daughter of Gold·Card Drawing System' - the system bug version, please use it with caution!"
Before he could react, a golden light flashed, and he traveled directly to the scene of the bloody drama about the real and fake daughter of a wealthy family, and became the "waste brother" of the fake daughter who was ridiculed by the entire Internet. What's even more outrageous is that this system is so buggy: the card drawing interface is all garbled, the skill descriptions are completely inaccurate, and the effects of the cards drawn are even more ridiculously random - for example, "Mind Reading" has become "Mind Reading·Reverse Version", which not only can hear everyone's thoughts, but also automatically speaks out loud.
For a time, Peng Yue became the laughing stock of the entire wealthy circle. But just when everyone thought he was just an unlucky guy, he accidentally revealed the shocking conspiracy behind the real and fake daughter through seemingly funny card drawings. It turns out that the system bug was not an accident, but someone did it deliberately. And Peng Yue is the only person who can fix this bug - or in other words, he himself is part of the bug.
He has a tough mouth and says "It's none of my business", but he is very honest and takes action to save his framed sister again and again, and slaps all the villains in the face in the most outrageous way. When the truth gradually emerged, he was surprised to find that behind this dispute between real and fake daughters, there was actually a bigger secret involved - the source of system bugs came from a dimension he had never imagined.