Hi there, i forgot the title of manga, it has also a ln. mc has sister not releated by blood, and she has a thing for him. mc is a reancarnations of a supreme magican or something, im not sure my self either he maybe a clone of the supreme magichan that he is left to the world. dont remember. mc's sister abuched by shity arictocrad for to play, and mc go the save a princes who is sick. she was got poisoned. so mc want a aristocratic title for a reward and go the save his sister. and he did.