The Warring States, but Different

What's better than transmigrating?

Having the idol girl you've always liked transmigrate with you, and getting a golden finger and a chance to save the beauty.

What's worse than transmigrating?

Transmigrating with your idol girl, only to be captured by a group of mountain folk who want to offer you up as a sacrifice to a monster.

What's more of a headache than transmigrating?

Transmigrating to Japan's Warring States period. You think it's Taiko Risshiden, but then the whole thing suddenly turns into Warriors Orochi.