Lupe's manga / #Romance(275)

WHY TF is this story so sad. Noble lady dies in vain in her 1st life and she’s reincarnated to the same life just pushed back 10 yrs, so she comes back and she’s reliving the life big she’s making changes. The changes are small but they cause a big impact but I just wanna know why tf the children of the FL had to go back on time to save her but can’t reveal their identify to the mom