Although Tang Qi is the principal, most of the affairs within the school are actually handled by Eva.
This habit began during the era of Esmeralda.
Most of the time after the Spiritual Tide Return, the Witch Group has been preparing to deal with curses.
All the affairs of the school are controlled by Eva.
Although the Witch School was not a major force before Tang Qi's arrival, and Secret Phoenix City's Mysterious Side feared the Witches, anyone must admit that Professor Eva has made significant contributions in establishing order and arranging affairs neatly.
Tang Qi continued this practice, but it has been somewhat hard on Eva.
The Witch School under his control encounters much more trouble than in the Witch era.