Minami Kawanami serves as an antagonistic member of the Foo Fighters, targeting card shops. He exudes arrogance, relishing in causing harm to others, yet reveals cowardice by fleeing unfavorable confrontations. His appearance features long, unkempt white hair and distinctive red leather attire with grey accents and zippers, worn over a black undershirt.

Following a decisive defeat by Toshiki Kai in a cardfight, Minami undergoes a drastic behavioral shift, adopting overtly dog-like mannerisms. He moves exclusively on all fours and communicates through barks or whines. Asaka Narumi acts as his handler, enforcing this subservient role with a dog collar and leash, a dynamic recurring as a comedic element beyond his initial arc.

Minami later resurfaces among the earliest documented PSYqualia Zombies, a state of compromised free will induced by external manipulation. In this condition, he assists Suiko Tatsunagi in her takeover of Fukuhara High School to advance Foo Fighters' objectives. Despite his altered state, he maintains a respectful demeanor towards Ren Suzugamori, indicating preserved social hierarchies within the organization. No additional background details, familial connections, or further development beyond these events exist in documented sources.