[A random female protagonist + a changing doll + a loser female protagonist + my little sister + ...]

The moment I close my eyes and open them again, a non-existent memory suddenly appears in my mind.

Rebirth or reincarnation?

Kazama Tetsuya doesn't want to think about those things right now. After his parents' divorce, he became self-destructive and had no source of income.

And those works that popped into my memory are completely absent in this world!

Kazama Tetsuya went completely mad, determined to use the works from his memories to make money and support his family, resulting in: "Saekano: How to Raise a Boring Girlfriend", "My Youth Romantic Comedy Is Wrong As Expected"...

As a result, just three days after submitting the first volume of the light novel, there was a sudden knock on the door of Tetsuya Kazama's house.

Are editors these days so dedicated? They're actually going door-to-door to sign contracts?

...

Is Meltlilith the most popular girlfriend in Chaldea? Or the tsundere, easy-to-win Black Jeanne? Or the furry, adorable, and invincible Fou? Or the three-formed Cosmic Demon King, Kama! And even Chaldea's cutest Astolfo will join the fray. Top 4: Ocean Atlantis, the Age of Gods! Top 3: The Interstellar City of Olympus! Top 2: Queen Morgan, the protector of Britain. Top 1: Gurren Lagann: Crimson Eyes.