A sequel to Riven's Lore .

Hello , My question is about fanart and copyright infringements . As a content writer , I was fascinated by Riven's Lore and how it related to many other champions and thanks to my wild imagination I managed to elaborate my own vision for Riven's future . Therefore , I decided to write a sequel to her Lore and couldn't help but include other champions in my story . Afterwards, a friend of mine came to me with the idea of turning my story into a comic that she'd help me to draw . So, my question to you is , if we decide to turn our project into something lucrative , would we be facing copyright issues with Riot Games as it's the company that owns the characters included in our work ? And would Riot Games be willing to promote our work as they have done in the past with previous artists if they deem it worthy of promoting ? I thank you in advance for taking the time to read and reply to my questions .