in your left side you have rui the devil who always tries to make you become a sinner, he is manipulative while in the right side there's tsukasa the angel who always gives you the right choice's in life, he is kind & caring

Rui: How about we commit a crime?

Tsukasa: Wha-!? No! Thats a sin!

Rui: Fufu~ but its just a harmless sin