The saintess has evil love magic aided by an evil high priest. The FL is a necromancer duke, with a new magic yandere butler. The supporting FL is a high society master mind. The ML is the emporor with eh? Magic powers and bi-panic, ig, and the saintess is trying to make him fall for her whilst the evil magic is seeing him turn into a puppet, who meanwhile gets pretty angery.
The Second Male Lead is Actually a Girl