Mizuki Fudo is a character from the media mix project Idol Incidents. She serves as the representative of Tokyo and is the leader of the Sunlight Party, one of the seven idol political parties in the story. Mizuki is also a member of the group SMILE X. She is a 19-year-old female with gray eyes and medium-length brown hair that reaches her shoulders. Her birthday is December 24, making her a Capricorn, and she stands 167 centimeters tall with a weight of 49 kilograms.

Mizuki possesses a serene and calming atmosphere, but beneath that exterior lies a mature and responsible personality. She is admired by many for her strength both as an idol and as a leader, and she is not afraid to be stern when the situation demands it. Her primary motivation is to do what she believes is best for the Sunlight Party and the ideals it represents. This sense of duty led her to make a difficult decision regarding Shizuka Onimaru, a former member of the Sunlight Party. Mizuki witnessed the pain that Shizuka's aura caused other idols and concluded that it would be in everyone's best interest for Shizuka to leave the party. This act demonstrates Mizuki's willingness to make tough choices for the greater good.

In the narrative, Mizuki functions as a supporting figure who provides leadership and stability within the Sunlight Party. Her key relationships include the other members of her party and the wider network of idol politicians. Over the course of the story, she continues to develop as a decisive and compassionate leader. Her notable abilities lie in her capacity to guide her team and command respect, as well as her talents as an idol performer.