Dr Stone (The one who is cursed) Ungoing

Number 01524 or Isabella was a lab project the only one out of 100 that had worked out after the lab was taking down and she was put in foster care she met Senku, Taija, Yuzuniha, Then soon started dating Senku and became his fiancée and was able to keep her Abilites quiet.

One is when she sleeps her body is covered in stone till she wake up leaving her to age slower then a normal human.