Kimi to Hana: Boukoku no Utahime to Kishi wa Tensei Shite Futatabi Meguri Au

A knight and a songstress whose love once ended tragically are reincarnated, through the pity of God, into a beautiful world where flowers heal people's wounds. Char, a young "flower guardian" who protects people from flower-eating monsters known as "flower eaters," one day has a fateful reunion wit...

Source: MyAnimeList