The Only Summoning Sealer In The Entire Star Federation

Su Lanjin awakens in the midst of a chaotic battlefield, surrounded by dense demonic energy that shocks her senses. She finds herself in a futuristic interstellar setting where humanity fights against sinister demons using spiritual energy. The scene is a selection tournament for military academies, where young contestants from various planets compete to demonstrate their combat abilities. Su Lanjin, possessing a spiritual energy sword and combat skills far superior to the locals, instinctively joins the fray. While other contestants can only suppress or trap demons, Su Lanjin completely eliminates them with precise sword strikes, shocking both the participants and the live-streaming audience. Her arrival turns a losing battle into a victory, saving her teammates Jian Xiangxue and Song Juncai from certain death.

After the battle, Su Lanjin learns that she has transmigrated to a new world where demons have plagued humanity for thousands of years. The Federation, the governing body, has established a selection competition on a barren star to recruit new talent for three prestigious academies: the Realm Management Academy, the Shengbei Academy, and the Canglan Academy. Su Lanjin forms a temporary team with Jian Xiangxue, Song Juncai, Ni Shushu, and Gong Jiaxin to navigate the tournament. As they progress, Su Lanjin discovers that her abilities in this world are unique; she can draw talismans with spiritual energy and unleash powerful spells that defy the known limits of demon suppression. Her performance attracts attention from top officials and military leaders, including Marshal Wen Hanzhou, who observes her with keen interest.

The core conflict escalates when the team encounters a massive demon nest that collapses, revealing the entrance to the Abyss Underground, a legendary death trap from which no one has ever escaped. Trapped inside, the group faces thousands of ceramic jars containing sleeping sinister demons. While others despair and prepare for death, Su Lanjin decides to destroy the jars and eliminate the demons rather than wait for rescue. Despite protests from her teammates and criticism from the audience, she shatters the jars one by one, killing the demons before they can fully awaken. Her relentless assault clears the entire underground, causing the Abyss to collapse and revealing an exit.

Upon emerging, the team faces acid rain, a rare and dangerous weather phenomenon linked to the massive demonic energy release. Su Lanjin recognizes it as demonic energy rain from her previous life, indicating that the demons in this world are connected to a deeper, ancient threat. The tournament officials and military forces scramble to respond to the anomalies, with rescue teams being dispatched while top commanders debate Su Lanjin's true identity and potential. The story concludes with Su Lanjin's group continuing through the tournament, now famous for breaking the thousand-year curse of the Abyss Underground, while mysterious forces from both the Federation and the rival Empire begin to take notice of the enigmatic newcomer who claims to be able to kill demons outright.