My contribution for Odaiba Day…a single headcanon
Headcanon that Hikari’s first ever innocent childhood crush was Koushiro. He always came over to the Yagami residence to spend time with Taichi, and through the hours spent there, he and Hikari also developed a close friendship. Koushiro let her join in on his and Taichi’s marathoning of video games, was always polite, and he was older than her, so there was no stopping her 8-9 year old heart from thinking he was the absolute coolest person in the entire world.