Crossover: Picking Up Kids Across Worlds

Kalana is an orphan. After losing her beloved home twice, she was on the verge of death when she bonded with a [Minor Protection System]. The System requires her to adopt and help children suffering hardship who have been transported from various worlds. The more children she adopts, the more farming tools she receives, making it easier to take in even more children. Kalana: What good are farming tools? Give me superpowers! System: But, but you don't need superpowers to adopt children... Kalana: You're a Minor Protection System, not a Minor-Raising System. Give me superpowers! I'll leave nothing but ashes of any bastard who dares hurt an innocent child! System: Th-that actually makes some sense! And so, the villains with a history of crimes against minors: Y-you stay away from me! Kalana: Hey, you there? I'm here to scatter your ashes. The minors: I want to grow up to be just like Big Sister Kalana! Starting this as a draft, and I'll write it when the time is right. Feel free to tell me which worlds you'd like to see. Planned: The Promised Neverland, Bungo Stray Dogs, Girls' Last Tour, Fate, and some worlds whose characters will appear even though she won't visit them. Theme: Protecting minors