Age: 8 (Digimon movie part one), 12 (Digimon 01), 15 (Digimon 02), 18 (Digimon Tri.)
Birthday: 1987

Jou is dependable and thoughtful, though he is sometimes a worrier. He tries to act as the voice of reason within the group and believes in being prepared. He holds the Crest of Sincerity, which is changed to Reliability in the English dub.

(Source: Wikipedia)