From Wikimon

Biographical Information

Name	Hiro
Kanji/Kana
Age
Partner Digimon	Many
Digivice Color

Profile

Hiro is the protagonist the player takes control of in the video game, Digimon World. He owns a red Digimon V-pet, and is sucked into the Digital World through it by Jijimon, who needs him to help save File Island by discovering what is causing Digimon to become more wild, bringing residents to File City, and of course, raising Digimon.

Like a V-pet Digimon, Hiro's partner has a varying lifespan and evolves at certain intervals and eventually dies, leaving behind a new DigiTama to raise, usually more powerful than the last with slowly-increasing parameters, but can only evolve as far as Perfect.