Saiai No Onee-Sama Ga Akuyaku Reijou Datta No De, Kami Ga Sadameta Scenario Ni Aragaimasu @comic

"I will defeat all the fates that stand in my sister's way!" The younger daughter, who adores her sister, a villainous daughter, from the bottom of her heart, stands up against her sister's bad end, no matter what it takes to avoid it! An up-and-coming loop fantasy that spans time with only love and persistence!