Daisuke Kurita was the last true scion of House Kurita and son of Emi Kurita.
When her mode narrowly escape an assassination attempt on her life after finding out about a conspiracy against the ruling Kurita family, she had no choice but to seek asylum with the Nova Cats who harbored loyalty to her family and not the "puppet" Coordinator Yori Kurita. While hiding within the protection of the Nova Cats, she went on a personal mission to conceive a child to continue the true line of Kurita blood.
Once he was conceived, and with the backing of both the Nova Cats and Katana Tormark's Dragon's Fury, Emi was able to get a sizable force to rebel against the Dragon Throne. Unfortunately for her, the forces of Matsuhari Toranaga were stronger and the forces loyal to her were brutally suppressed.
Emi decided to take the life of herself and her son, Daisuke, with poison rather than to see both of them paraded and/or executed as an example.
- Era Report: 3145, p. 91, "Emi Kurita profile"