This story is a self-insert isekai with a unique twist—rather than being transported to a random fantasy world, the protagonist, Serena, wakes up inside her own story, a school romance she had written before falling asleep. At first, she is disoriented, struggling to understand how she ended up in an unfamiliar city. But as strange encounters unfold, she realizes the shocking truth—she has reincarnated into her own creation. However, rather than being the protagonist or an important character, she is just a normal student, a background character with no special role. As Serena grapples with the absurdity of her situation, questions race through her mind: How did this happen? Is there a way back? Or is she truly stuck in the world she once controlled as an author? With no clear answers and no special abilities, she must now navigate the story she originally crafted from the outside—only this time, she’s living in it. This setup paves the way for an intriguing mix of self-discovery, worldbuilding, and possibly even romance, as Serena interacts with characters she once designed while trying to figure out her purpose in this new reality.