I, Seele, am Causing Chaos in the Honkai World

As a newbie, being recommended Honkai Impact 3rd was great! The girls in it are all beautiful, with lovely voices and gorgeous looks. I loved the game at first sight. As a lucky newbie, I completed S-rank Seele with just one expansion and four precise pulls during the Twin Seele banner, which made me love the game even more. It should have been double the fun, and being together should have been wonderful, but why did it turn out like this? I... I've been transported to Honkai Impact 3rd and become Seele!! Not just replacing the original character, but completely parachuted in as an independent Seele! Damn it! I've never played Honkai Impact 3rd before, I have no idea about the story! Can someone tell me why Bronya looks at me like that? Who are you?! Can someone tell me why this Kiana is constantly bothering me?! Can someone tell me who Otto is?! In this dark, cold, and ruthless broken world, only that lazy module with absolutely no tutorial can bring me a little warmth.