I am Engaging in Competition in the Immortal Realm.

Summary

Wen Chi and Qin Shu, aware of their family's ancient cultivation technique, decide to explore a mysterious palace. Upon entry, they experience different paths; Wen Chi remains seated, while Qin Shu finds herself in a dark, damp corridor resembling a tomb. After overcoming a spike trap using her Iron Head technique, she discovers a stone door with a Sudoku puzzle. Utilizing her mathematical skills, she solves it effortlessly, unlocking the door. Inside, she encounters a cobblestone path leading to sculptures of various cultivators, revealing no traps but a rich history of their kind.

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