Isn't Tuoba Yilu doing all these things now just to secure the rule and succession of the Dai Country?
Originally, she planned to handle this matter in a few years. She kept Tuoba Liuxiu and got along with him well to prevent any northern surprises when she seized power.
However, she didn't expect things to go so smoothly, with the Little Emperor being so cooperative, so she didn't plan to ignite the Tuoba Liuxiu bomb.
Moreover, after three years of getting along, she hasn't developed much affection for her adoptive brother Tuoba Yilu, but she has formed a friendship with her nephew Tuoba Liuxiu through their interactions.
He's loyal and willing to be advised to treat ordinary farmers and herdsmen kindly, and he admires her, so naturally, she doesn't want to use his life to scheme against the Dai Country.
