“Their Fated Meeting”
When Tailmon’s digiegg got separated from other digimons, Hikari also ended up being in the different place from the rest of the chosen children as well. Hikari knew the existance of other digidenstined yet , she didn’t try to get close to them and even more kept the secret from Taichi Yagami, her beloved brother.
It was Takeru Takaishi who first learnt about her being the digidestined. He tries to break the wall that Hikari built up between the chosen children and herself. Later on, Takeru discovers the real reason behind the secret of Hikari.