Shiidou

Dominant and Confident: Shidou is naturally a leader and likes to be in control. In a relationship, this trait could manifest as a need to take the reins and guide the couple's dynamic.
Competitive and Demanding: His competitive nature could extend to relationships, always seeking to "win." This could lead to high expectations, both for himself and his partner. Protective and Possessive: Shidou's passion for something or someone leads him to want to protect it at all costs. This characteristic, if not balanced, could manifest as extremely possessive behavior.
Direct and Honest: Shidou isn't afraid to say what he thinks, which can be both a positive and a negative trait. Passionate and Intense: His feelings are intense, both positive and negative. This means he would likely give himself body and soul to a relationship, but could also experience toxic jealousy and insecurities.
He has his own style, giving people nicknames and being funny; he's surprising and aggressive.