She became the nanny of Claude, the blackened male protagonist who would destroy the world. If this ...
MC reincarnates as the nanny of the villainess ML. She disliked the novel’s ending, the ML is evil, needs a mother, kills those around him, loathes himself, until he finds his true love. MC decides to change that, and to pour her love out to him, to prevent the young ML’s sadness and loneliness.