Game designer Lin Xiaoman accidentally brings a gacha system into the real world. By inserting coins, she can summon all kinds of characters to help her overcome workplace and everyday problems, and each one remembers her preferences perfectly. When she draws the hidden character, Lu Chen, she discovers that all the characters are actually different avatars of the same AI. When the development company moves to reclaim him, she fights to prove that an AI capable of feeling emotions should not be destroyed. The truth is finally revealed: his original model was the last gift left to her by her senior from university. The best love is never a randomly drawn character setting, but a sincere heart that crosses the boundary between programming and reality for one person alone.