You can be any sign you want

Gemini (Castor and Pollux) has trained Lunar to control his powers and other things but lunar lost control. Gemini is in court with the other signs. The twins were trying to convince them to not kill Lunar.

Castor : “Guys please give him a chance! He is a kid..”

Leo : “Why should we trust you hmm~? You’re the one who trained him and now he is a wreck. Honestly? If you do lose Gemini? I’ll let Aries and Scorpio kill him. You know how they won’t go eas-“