Le Yu thought he discovered the 'Dark Qin Le Yin Principle'.
Known:
① Niruo and Ming Shuangli currently hold the greatest advantage as a sword trainers team;
② Young Mie Tang Ya lives in the student dormitory, has roommates, does not live alone, and holds a low status in the academy (first-year student);
③ Teacher Qin Le Yin lives in the teacher dormitory, lives alone, holds a high status in the academy (teacher), and is quite powerful.
After jumping outside the circle, Le Yu can see among the three sword trainers exposed so far, Qin Le Yin is indeed the best partner: Niruo is too strong, Mie Tang Ya too weak. By collaborating with the second-rate Qin Le Yin, advancing means acting freely above Niruo, retreating means the same above anyone else but Niruo.