Initially unaware that Terriermon is alive , she treats the Digimon like a plush toy , much to Terriermon 's chagrin .
Henry 's little sister , and the third youngest Tamer ( after Ai and Makoto ) .
Initially unaware that Terriermon is alive , sister treats the Digimon like a plush toy , much to Terriermon 's chagrin .
Henry 's little sister , and the third youngest Tamer ( after Ai and Makoto ) .