Eventually, Nana was killed by All For One in a fight sometime after passing along One For All, entrusting Toshinori's training to Gran Torino.

Did Nana Shimura have a kid?

Kotaro was the only son of Nana Shimura and her unnamed husband. He was placed into foster care by his grieving mother when his father was killed to protect him from All For One.

What happened to Nana in MHA?

After passing on the power to her student, Shimura sacrificed her life so that Yagi could escape the vile clutches of All For One. ... Nana Shimura's legacy was not one of complete failure however, as All Might's successor Izuku Midoriya carried on the mantle and opposed Shigaraki.