Yes, it is pretty obvious. He is, however, a hopeless suitor since Kari has no interest in him.
Yes, but it is a one-sided crush.
No.
Kari's Crest is the Crest of Light.
Kari, Tai's little sister.
It does not say, but he marries Kari in the year 2027.
Her first chonological appearence is in the first Digimon movie. If you are referring to her first appearence in a proper Digimon season it happened in the 21st episode of Adventure.
It was not revealed in any episodes about who Tai ended up marrying.
No, Kari and Willis do not fall in love with one another in Digimon.
T.K. She doesn't seem to like Davis that much.
No, Kari never appears in Digimon Tamers.
Kari's Crest is the Crest of Light.
Kari's crest is the crest of light.
Kari Kamiya is a character in the first and second seasons of Digimon.
Episode 21 of Digimon Adventure.
Tai
Lara Jill Miller
No Yggdrasil was not the mysterious entity that spoke through Kari in one episode of the first season of Digimon Adventure. Yggdrasil is from Digimon Data Squad which is a separate continuity from Digimon Adventure and therefore doesn't exist in the Digimon Adventure continuity.
Kari, Tai's little sister.
It does not say, but he marries Kari in the year 2027.