Kokoro

Kokoro is one of the children in Crow's care in Yu-Gi-Oh! 5D's.

Biography
Kokoro lived in Satellite, with a number of other young children, including Taiga, Ginga, Daichi and Hikari. They were often visited by Crow, who gave them Duel Monsters cards and advised them not to get in trouble with Sector Security.

Kokoro likes hearing the Daedalus Bridge legend off Crow and asked him to tell it again, when Yusei and his friends were visiting.

Kokoro was absorbed by the black fog when it released on Satellite. This was used to Summon the Earthbound Immortals. Crow managed to survive the black mist and for a brief moment though the children did too. He saw some of them including Kokoro run towards him, before realizing that it was just his imagination.

Kokoro was released after the Earthbound Immortal, she had been sacrificed to Summon, was defeated.

She lived in Martha's care afterwards and welcomed Tetsuzo Kuzuyama as her "grandpa" when he came to live with them.

She boarded the bus with the other people at the orphanage as New Domino was evacuated while the Ark Cradle descended.