Krillin, a human martial artist and enduring comrade of Goku, begins as a competitive rival during their training under Master Roshi before their bond deepens into unwavering loyalty and camaraderie. His distinctive appearance features a shaved head—maintained as a martial arts discipline despite naturally growing black hair, later regrown and shaved again during the Golden Frieza Saga—alongside six moxibustion scars on his forehead and a noseless face, playfully attributed to skin-based respiration. A disciple of the Turtle School, Krillin hones techniques like the Kamehameha, Solar Flare, and his razor-edged Kienzan (Destructo Disc), an energy disc capable of slicing through nearly all defenses. His combat approach prioritizes agility and precision, leveraging strategic ki manipulation to bridge gaps left by his lack of Saiyan biology. A pivotal power surge during the Namek Saga, unlocked by Grand Elder Guru’s awakening of his latent potential, enables him to contend with escalating threats. Evolving from a self-interested youth to a selfless warrior, Krillin’s journey intertwines sacrifice and resurrection. His repeated deaths spur critical turning points, including Goku’s inaugural Super Saiyan awakening. Romance blooms with Android 18 during the Android Saga, culminating in marriage and parenthood as they raise daughter Marron. His choice to destroy her deactivation remote, valuing her autonomy over tactical gain, underscores his empathetic core. In *Dragon Ball Super*, Krillin temporarily steps back from combat, embracing family life and police work, before reigniting his martial prowess during the Golden Frieza Saga with sharpened reflexes. The Tournament of Power showcases his tactical ingenuity, deploying Solar Flare to outmaneuver overpowered foes. Later, during the Super Hero Saga, he aids in thwarting the Red Ribbon Army and Cell Max, protecting civilians, coordinating with allies, and successfully employing the Kienzan against Cell Max’s wing—addressing prior inconsistencies with the technique’s effectiveness. Krillin’s legacy lies in tenacity, exemplifying human grit amid cosmic-scale battles. As a mentor, husband, and father, he harmonizes Master Roshi’s teachings with personal growth, balancing martial rigor with grounded humanity. Though occasionally less prominent in later conflicts, his tactical brilliance and unwavering ethics cement his role in pivotal battles, proving resilience transcends raw power.