Son-in-law: Me, the Wife-Protecting Maniac.

Summary

Yang Chen transitions from using the Heavenly Sword to the Listening Wind Sword, seeking to improve his killing technique. As he practices, he realizes that true mastery involves commanding the wind rather than merely increasing speed. After contemplation, he successfully achieves this command, resulting in a silent world when he draws the sword. Encouraged by a mysterious woman's voice, he shifts back to the Heavenly Sword, practicing the Thunder Strike to expend accumulated energy. Meanwhile, his peers, inspired by his progress, strive to improve themselves. After three days of intense training, Yang Chen consumes elixirs, breaking through to become a Martial King.

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