Don't know what to call it yet

Some of the tags are still unknown to me if they will actually be used and some tags that arent there might actually be used so take it lightly. This is a wish-fulfillment and I have no idea if I will properly attempt to create a FF or drop it pretty early. I am also open to criticism on how to improve and grammar corrections if you spot them because it will help a lot. First off I know very little about the worlds I'm sending the MC to and most of my knowledge for a lot of the worlds is based on Fanfics. Second, I have no idea if this will be a multiverse so that is also up in the air. Third, I am horrible at portraying a character's emotions and will probably make any romance (if there is any) very bad and might just straight-up change some character's personalities entirely to fit my needs. If you don't like any of this then please move on. Finally, any and all characters except OC's are not mine. Worlds are also not mine. First world is Danmachi