Runeterra, Apostasy

What changes will a young man who accidentally travels to the ancient Freljord bring to this continent? Lissandra, Ahri, Leopard Girl, I want them all... Note: First, I will accept as many girls as I can, and I will try my best to retain the personality of the characters. I don't want to make the trickster LeBlanc become brainless, or the extremely heroic Irelia instantly transform into a licker; second, novices who have no idea about the background of League of Legends, and newbies who know a little bit can watch it. I will mention the necessary background stories, so that you won't be confused, so you can rest assured. 3. If you don't know League of Legends at all, you can read the novel as a fantasy, which is absolutely fine; 4. The first two chapters are a bit boring, but it gets better afterward. This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.