Everyone who attended the party would agree with a few points of that night.
First, it was one of the most terrifying experiences of their life. Everyone was afraid that a fight would break out which would end their life.
After all, the aura the divine leader and the temporary head of the Tsurugi family were letting out made everyone nervous.
The second reason for this night being terrifying was the way look Yoko Tsurugi looked into her eyes. Despite her beautiful appearance, it was clear that her every step had a purpose. And if she chose to approach you, then you had no choice but to help her out.
That also made you a target for Lady Suzuki's anger and annoyance. So, no one wanted Yoko Tsurugi to interact with them.
But this was also a party held by the Tsurugi household and not greeting Yoko Tsurugi would be an insult.