Contradicting duality lead

A lead who has two completely contradicting personas, like maybe at work they're serious, boring, and anonymous while in their hobby they're a popstar who expresseses all their feelings they can't express at work... 

• Healer - ML has a default work persona (strong fighter / man for hire / lone wolf), several undercover personas that he puts on intentionally (including one main one that is the opposite of his main work persona - a timid person with no special skills), and his own personality underneath those personas, which he is in the process of discovering.
• The Eternal Love - Might not be what you're looking for. The FL has two souls in one body. One is from modern times with a bold, brash personality. The other is from ancient times and is quiet and well-mannered. 
• The Secret Life of My Secretary - The FL is a secretary who is so caught up in her work that she doesn't spend much time caring about her self or her appearance. She ends up taking on the persona of a rich business woman from time to time who puts effort into her appearance and is treated well by others. 
• Lupin no Musume - The FL is a mild mannered librarian engaged to a young police officer, but she was raised by a family of gentlemen thieves. Although she wants to distance herself from that lifestyle, she can fall back into the persona of a confident master thief at any time with ease.