Tokyo: I took in my ex's twin sister (1-151).

Summary

Sawayama Haruno changes into a hakama and receives guidance from Ezaki Naoha on how to properly tie his belt, emphasizing the importance of balance between tightness and looseness for comfort and focus during Kenjutsu. As they prepare, Mine Shiori arrives and admires Haruno's appearance in kendo armor, blushing at his smile. The trio dons protective gear, and while Naoha assists Haruno, she notes his strength, hinting at his rigorous training. Once ready, they head to the training area where Naoha offers to teach Haruno basic stances, but he prefers to practice freely. As he focuses on Naoha, he experiences heightened concentration, feeling more aware of his surroundings. Haruno adopts the Upper High Stance, surprising Naoha with his fluid movements, and he strikes at her, showcasing unexpected skill for a beginner.

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