Lee Shenlon is a character from the Cardfight!! Vanguard: Asia Circuit Hen anime. He is a twelve-year-old student at the Singapore Institute of Technology, where he studies alongside his friends Christopher Lo and Ali Pajeel. Shenlon is also a member of Team S.I.T. Genius, a team he forms with Chris and Ali. His background is notable because he is the heir to the Prime Minister of Singapore, a detail that sets him apart from many of his peers and suggests a life of high expectations.

Personality-wise, Shenlon is ambitious and driven, with a strong desire to be the best cardfighter he can be. He works hard to improve and strives to reach the number one position, but he consistently finds himself unable to surpass his friend and teammate Christopher Lo. This dynamic fuels a quiet rivalry within him, pushing him to train even harder while also highlighting a sense of humility or frustration. His motivations are rooted in personal achievement and proving his own strength, likely tied to the pressure of his family legacy and his pride as a cardfighter.

In the story, Shenlon plays a supporting role during the Asia Circuit arc. As a member of Team S.I.T. Genius, he participates in the tournament and faces opponents from other regions, contributing to the broader competitive narrative. His key relationships are with Christopher Lo, whom he respects as a superior rival, and Ali Pajeel, who balances the team dynamic. His development is subtle but present; he continues to appear in later seasons such as Link Joker-hen and Legion Mate-hen, indicating that his journey as a cardfighter extends beyond the Asia Circuit. While his abilities are not extensively elaborated, he is shown to be a competent and strategic player, capable of holding his own in high-stakes matches. Overall, Shenlon represents a young prodigy caught between ambition and the reality of not being the absolute best, making him a relatable figure within the Vanguard universe.