Good news: I've transmigrated into a crossover world. Yukinoshita Yukino is my neighbor, Eriri lives upstairs, and Kato Megumi is standing at the bottom of the hill.
Bad news: There's a crack in the sky, and curses, evil spirits, and Apostles fall out of it.
Good news: I have the "Dimensional Transcription System." Witness a famous scene, and I can transcribe its abilities.
Bad news: The famous scenes I need to witness include, but aren't limited to: curses getting right in my face, Muzan knocking at the door, Aincrad collapsing, the Holy Grail War opening with a lightning strike, and a spatial quake washing over me...
Shendai You: All I ever wanted was to quietly copy a few books. How did I end up copying my way through all the worlds?
(Main world: a modern city in a crossover series, with everyday life.)
(Planned transmigration worlds: Konosuba, with a happy ending for everyone, and a rewrite of the most heartbreaking parts.)
(Alternate title: "Crossover: What Do You Mean I Copied My Way to Becoming the Strongest Across All Worlds?")