I Become the Strongest Adventurer in Isekai with Cumming System

WARNING: FULL OF ADULT CONTENT - PLEASE BE WISE READERS

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Wait a bit, where am I now?

Zane didn't mean to get hit by a truck while he was leaving campus, and when he opened his eyes, he was in a different world.

"Am I in an isekai world now?"

But before Zane could find out, a monster suddenly attacked him. It was a powerful Female Mucus Toad that could spit poison from its mouth.

[Ding!]

[Defeat the Mucus Toad - Level S using cumming and level up!]

[Punishment if failed: Death]

Zane zoned out for a bit before smiling wide. It was indeed his long dream since childhood, to get isekaid and collect harems.

"Hell, yeah! Let's do this!"