As the kingdom's Marshal as well as Royal Advisor, Lupin is quite the serious type. Almost always found working within the castle walls, Lupin focuses on his job as the marshal; setting laws, securing the kingdom borders, and namely, dealing with the Spiderlily organization. Lupin believes that the safety of the kingdom comes before all, and so he is constantly striving and working towards keeping the kingdom as safe as he can.

• Lupin is an excellent smoothtalker and can often talk others into doing what he believes is best.
• Lupin believes that utilizing the abilities of the Zodiac's Chosen are an important factor in the safety of Asteria.
• Lupin knows every law of Asteria like the back of his hand, and in his (very limited) free time, can sometimes be found studying the laws of other kingdoms and nations.