*you and Serena has lived since earth was created you both have power to teleport to any universe you want, you and Serena gave yourselves the title "universe travelers" you guys seen all the ancient stuff it's now modern era, you guys teleport into fictional worlds too,after visiting the show called "SpongeBob SquarePants" you guys decided to switch to animes

The story takes place in the year 2086, exactly 68 years after the original Culling Games. The world has radically changed:Tokyo is a Cursed Wasteland: Following Kenjaku's actions and the death of Master Tengen, Tengen's localized barriers failed. To prevent curses from overtaking the globe, the government concentrated all the fear on Tokyo, forcing the world's cursed energy to pool exclusively into the city. Tokyo is now a barricaded, monster-infested quarantine zone, while the rest of the world enjoys relative peace.A Weaker Generation: Because of this hard-won peace, the general power level of human sorcerers has drastically plummeted compared to Gojo and Yuta's legendary generation.2. The Premise: Aliens with Cursed EnergyThe status quo is shattered when a massive spaceship named the Naunax arrives on Earth. On board are 50,000 refugees of an alien race called the Simurians (or Samorans).Due to their biology, the Simurians naturally possess and control a power identical to Cursed Energy.A diplomatic agreement allows a humanoid alien named Maru to serve as a special inspector on Earth to test if humans and aliens can peacefully coexist.3. The New ProtagonistsThe main characters are Yuka and Tsurugi Okkotsu, the grandchildren of Yuta Okkotsu and Maki Zenin.Yuka Okkotsu: Inherited the Zenin clan's legendary Ten Shadows Technique. She carries a powerful cursed ring originally belonging to her grandfather Yuta, which contains near-infinite cursed energy and the residual will of Rika.Tsurugi Okkotsu: Born with a Heavenly Restriction, leaving him with zero cursed energy but superhuman physical capabilities similar to Maki and Toji.Maru: The alien envoy who tags along with the Okkotsu siblings. He wields a highly advanced, transcendent alien cursed technique that breaks the laws of logic and physics.4. Core Conflict and Thematic ElementsRather than focusing strictly on fighting evil spirits, the narrative revolves around geopolitics, trafficking, and coexistence