Yagami Hikari

Profile:
She is characterized as a sweet character. She was the Eight Chosen Child in Digimon Adventure, and one of the two experienced Chosen Children in Digimon Adventure 02, along with Takaishi Takeru. She is the younger sister to Yagami Taichi.

She is the partner of Tailmon and the bearer of the Crest of Light.

Prelude to Digimon Adventure
When Taichi and Hikari were still very young and lived in Hikarigaoka, they discovered a DigiTama that came out of their father's PC. It hatched into Botamon and evolved into Koromon and the two children befriended it, but it became feral when it evolved into Agumon, and then Greymon. A Parrotmon also crossed over from the Digital World challenged the aggressive Greymon, defeating it until Hikari revived it with her whistle, allowing it to overpower Parrotmon and causing both Digimon to vanish from the human world. Following this incident, the Yagami family moved to Odaiba.

A year after the Hikarigaoka incident, Hikari became ill, but Taichi insisted on taking her out to play ball. While outside, she fainted, and had to be hospitalized for pneumonia. However, she didn't blame Taichi.

Digimon Adventure
After that incident, she remained a rather sickly girl, and was not able to go to the camp with the others due to an illness. However, when Taichi and his own Koromon showed up at the Yagami residence, she welcomed them and immediately knew that Koromon was a Digimon, not thinking he was weird at all.

Later, Vamdemon used the Crest of Light, as well as duplicates of it, to try and locate the eighth Chosen Child. Taichi and the others came back to the Real World to search of the Chosen Child as well. However, in the end it was Tailmon, one of Vamdemon's most trustworthy servants, who found Hikari, discovering that she was the eighth Chosen Child and her partner. After the fall of Vamdemon, Hikari and Tailmon went with the others to the Digital World to free it from the Dark Masters.

Digimon Adventure: Our War Game
Hikari was not involved in the war on the Internet because she went to a friend's birthday party. Despite Taichi's pleas, she just couldn't get out, not wanting to insult her friend.

Between Digimon Adventure & Digimon 02
During May of 2000, Hikari arrived in the Digital World and gave up her Crest power to free the Four Holy Beasts. As a result, Tailmon lost the ability to become Angewomon.

Digimon Adventure 02
Hikari was chosen to continue her role as the Chosen Child of Light and worked with the new Chosen Children. During this time, She had trouble with her self-esteem, but regained it with the help of her friends. She had a strong friendship with Takeru, who also returned as a main character.

Digimon Adventure 02: Diablomon Strikes Back
Hikari went with Miyako to collect Kuramon and send them to Koushiro's computer. However, she later parted with Miyako and went into the Internet with Takeru, to aid their brothers in the battle against Diablomon. After Diablomon was beaten she returned to the real world to watch the battle against Armagemon.

Digimon Adventure 02: Series Finale epilogue
Hikari has become a teacher, which was her longtime dream. She is married and has a son.

Digimon Hurricane Touchdown!! Supreme Evolution!! The Golden Digimentals
She and Takeru were in New York visiting Mimi. When Mimi disappeared, Hikari senses a "crying Digimon" and they witnessed Wallace trying to talk to a rampaging Wendimon. Wallace's Terriermon battles Wendimon when he attacked but was easily beaten. Wendimon suddenly disappeared.

She and Takeru took a train to try and reach the others but Wendimon damaged the train. They arrived in the middle of the battle to see that Wendimon had evolved all the way to Cherubimon. Hikari states that he is no longer the "crying Digimon".