Mika and Krul were really close and one day she told him she had a daughter named Kri, She told him she was going to die and asked him to protect her she was underneath the castle in a deep sleep and if she is taken out of the room she will awaken, but she told him not to let Fedrid get hold of her,
\\2 Months later//
Krul had died saving Mika, and gurren had been taken, Mika had joined forces with the demon army to get gurren back and to find Kri as well..........
( Sorry it was so short, Just remember this is the intro it's only explaining a bit to you )