Honkai, but It’s an Ordinary World

(Multiple female leads, all heroines start off with max affection for the protagonist)

I transmigrated, hooray!

It's Honkai Impact 3rd, oh no!

You're saying there's no Honkai in this world? Everyone's living happily ever after?

My adoptive parents are Cecilia and Siegfried, too?

But the only games in this world are an endless supply of Homu games?

Then I have to bring my gaming talent to this world. Whose talent it is, don't ask.