Between Stars and Sea (PJ x Gravity Falls (Billdip))

When a mysterious rift tears open in the woods of Gravity Falls, 17-year-old Dipper Pines-now a powerful demigod with strange, star-born abilities-is dragged through it and lands in an unfamiliar world: Camp Half-Blood. Alone and disoriented, Dipper hides a dangerous secret-his lover, Bill Cipher, a well-known godlike demon, is quietly residing in his mind to avoid the attention of Olympus.

There, Dipper crosses paths with Percy Jackson, the camp's legendary hero. Percy immediately senses something strange about the newcomer, but instead of suspicion, he offers friendship. As Dipper struggles with trust, control, and the constant fear of being discovered, he slowly begins to bond with Percy-someone who knows what it's like to carry the weight of the world.

But the rift that brought Dipper here is only the beginning. A prophecy stirs, gods take notice, and the fabric of reality begins to strain. All the while, Bill slips out at night to hold Dipper close, reminding him of the love that binds them across worlds.

With stars in his soul and chaos in his heart, Dipper must decide how far he's willing to go to protect the one he loves... and whether the gods will let them stay together at all.

A 31-chapter epic filled with cosmic powers, found friendship, soft moments under the stars, and a love that defies dimensions.