Doomed, but with a Gacha System

(I'm new to writing, so the prose may be rough. Feel free to point out any problems.) (I won't break up yuri couples, and I won't touch couples who are explicitly married and both have character models, including Dr. MEI, though Kevin is an exception.) (My World + Magnetic Field Madness + a complicated mix of elements) (The story starts crossing into other worlds around the middle.)

Multiple heroines, including yuri, with no tangled harem relationships.

The main point of this book: get rid of every single tearjerker!

Transmigrate into Honkai? I'm doomed! Better go hang myself from a tree.

What do you mean I rolled My World + Magnetic Field Rotation?

What do you mean I have Equivalent Exchange? EMC can be exchanged for System points?

What do you mean the money-farming machines weren't banned? All the EMC-farming machines in My World still work?

Cha Chen: I'm not targeting anyone. I mean, everyone here is a joke!

Kiana: What gibberish are you spouting? I don't understand a word! Take it up with my Honkai Demolition Fist!

Bronya: Behold the manifestation of 300,000 people's thoughts! The Infinite War God!

Mei: I'm just a housewife. I don't have that kind of strength (meaning, I'm weak), but if you won't listen to reason, I know a thing or two about the Sword of Hell!

Years later, Earth has become the ultimate forbidden zone, known throughout the universe. It is home to countless powerful people, who call everyone from beyond Earth weak, ignorant, uncultured space bumpkins!

(Honkai → Warhammer → Rick and Morty → Gensokyo)