reign's manga / #Stepsister(1)

[Stepsister] ━━━ ⚜ ━━━ The MC reincarnated into the novel “Eternal Love”, written by her when at 15 years old. However, instead of arriving when the original story began, she reincarnated seven years in the past. She became Ran Romea de Lazia, the daughter of the ML's stepmother. When their parents pass away, Ran takes over the Duchy temporarily until the ML comes of age in order to fulfil her “ML Happiness Plan". As she sees herself as a background character, she believes that once the ML finds the FL she will need to leave. But the ML seems to have caught feelings for her instead.