The title Angai Choroi means "Surprisingly Easy." In Chapter 152, the manga usually continues its tradition of subverting the "Unattainable High-Status Girl" trope.
Yuu Ayase continues his role as the emotional anchor for the three sisters—Kazuki, Niko, and Miwa—supporting them as they navigate these new external pressures. Character Development:
The Dynamics of Vulnerability in "Mikadono Sanshimai wa Angai Choroi"
The story continues the "School Festival" or "Principal's Challenge" arc, where the sisters face increasing pressure from the school administration. In this specific chapter: Conflict with the Principal: