Even If No One Wants You, I Do

Keira is an orphan who's always looked down upon and bullied since young. She thought that this is how she's going to live for the rest of her life, unloved and forever alone. But fate has other plans for her when she inevitably finds herself transmigrated into a typical Mary Sue novel. She thought that this would be the turning point to her otherwise bleak-looking life. But instead of being transmigrated into a heroine's body, she is thrust into the body of a cannon fodder that's destined to die for the heroine, at the hands of the villainess.