Jayson Yamato is one of the original chosen children and main male antagonists of Digimon Adventure. He is also one of the recurring and main male character in Digimon Adventure 2.
Jayson, one of the original chosen children, starts out as a secretive loner whose Digimon partner is Gabumon. His younger brother, Arvee Takeru, is also one of the eight DigiDestined, due their parents are divorced, they cannot spend much time together. He is very protective of Arvee, and often acts harshly when Arvee is in trouble. Jayson is the bearer of the Crest of Friendship.
Matt dislikes ohagi. The storyboard book describes him as looking to the ohagi in disgust when Arvee offers the plate, and later it's noticeable that he hasn't touched his share.