my reincarnated little sister

we always hear about hero or heroine saving the world.. but why did they become hero..and why only they have the heavens defying luck and not others.. why villains always lose even after having everything.. why... well answers is simple.. its because heavens set their fate like this.. well enough nonsense.. this story is not about any hero or heroin.. its about a family.. heroine family.. heroine who leaves everything and do everything just to help the hero without even thinking about her family ... its about the heroin elder brother.. who was named as the heir right after being born. . who never got to enjoy his childhood a boy who got destroyed because of heroine selfishness... what will happen if.. a teenager girl get transmitted into her favorite novel will she follow the same route or will she try to protect the character she always feel grateful for.. a novel where nothing seem to make sense but the family who still feel like reality to her. . let's go on a journey where we will see and understand the mystery behind the novel and heroine Family.. . . . . .let's go... follow me there can be grammical mistakes so sorry for that.. straight romance but still not so straight.. there can be boy x boy or boy x girl or girl x girl depends on my mood this story is omega verse so there will be male omegas too so don't get too shocked my darlings all quotes are mine and if someone thinks their quote idea is same as mine then congrats you are at the same level as mine and that is beginners level . all the pictures uploaded belongs to someone i don't know..I got them from Pinterest..so thank you whoever made these fabulous arts