Koori no Kuni no Koutaishi to Shinyuu ni Naru Uto Shita no ni

After meeting a sad death as a Korean teenager in her past life, nothing could be better than being reincarnated as Livia Hote, a beloved princess of the fire kingdom. A life of only luxury and peace awaited her as the novel's supporting character. However, she eventually realizes that she must learn to control her ever-growing fire powers and she can only do so with the prince of the ice kingdom. Thus, Livia will now have to deal with new uncertainties and relationships that could disrupt her plans to live a peaceful new life… (Source: Tappytoon) Note: First released in English, with the initial eligible release in Japanese followed by Korean, making it a manga by our standards.