Master Roshi

Master Roshi established himself as a reclusive martial arts master living on an isolated island, accumulating centuries of martial knowledge and establishing a reputation as a wise teacher. His decision to accept Goku and Krillin as students represents his final attempt at passing martial knowledge to worthy inheritors. His training regimen — emphasizing practical farm work, milk delivery routes, and unconventional conditioning — surprises conventional martial artists yet produces exceptional students.

Roshi's personal interest in attractive women and eccentric habits create comedy while establishing that even legendary masters remain fundamentally human with mundane desires and character flaws. His relationship with his pet turtle Umigame provides emotional core suggesting capacity for genuine connection beyond martial pursuits. His decision to hide his true power while training students demonstrates wisdom prioritizing student development over personal recognition.

Roshi's crucial moment disguising himself as "Jackie Chun" to compete against his students tests whether they have developed beyond dependence on his guidance. His eventual death attempting to reseal King Piccolo demonstrates the ultimate expression of his commitment — sacrificing himself for the world his students will inherit.