Mika Kannonji is a supporting character in the 1996 film Fudoh: The New Generation, where she serves as one of the teenage lieutenants in Riki Fudoh's gang of underage assassins. She is a high school student who also works part-time as a stripper. Mika is described as being intersex, a detail that is presented as part of her character's physical makeup. Her most distinctive ability is the use of a concealed dartgun that she wields with her vagina, allowing her to fire lethal darts in a covert and unexpected manner. This unusual method of attack makes her a unique and effective assassin within Riki's crew.

Mika's role in the story is to assist Riki in his campaign of revenge against the yakuza figures of Kyushu, particularly his father Iwao Fudoh. She participates in the gang's operations alongside her fellow lieutenants Touko Zenzai and Akira Aizome. Her motivations are aligned with Riki's cause, though her personal background beyond being a student and stripper is not explored in depth.

In the narrative, Mika is confronted by Gon, a former South Korean Army agent sent by Iwao to eliminate Riki. During a fight, Gon defeats both Mika and Touko using martial arts and acid attacks. While Touko is killed, Mika survives the encounter, though she does not play a further significant role in the climax of the film. Her defeat marks a turning point that escalates the conflict between Riki and his father. There is no indication of character development beyond her initial introduction and her eventual incapacitation. Mika's key relationships are with Riki as his subordinate and with Touko as a fellow lieutenant. Her notable ability, the dartgun hidden in her body, is the defining trait that sets her apart in the violent, offbeat world of the film.