Lets keep this simple shall we?

Single witty and sarcastic man is now trapped in an alternate Earth based off a cringy eroge game.

Worse yet he's stuck there as a supporting character with a horrendous backstory.

Seeking way home or at least trying not to bite the dust as many non-protagonist male characters do.

Will his real world thinking connect well to the tropey and cliché world of a harem game?

Probably not.

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Oh and F.Y.I ... He's the confused looking one on the bottom right.