Stop It! Your Archrival Can’t Become Your Wife

【Campus】【Slice of Life】【Comedy】【Romance】【Lighthearted】【Ensemble Cast】【No Toxicity】【Non-Supernatural】

【Prologue: The Beginning of It All – Use holy water to heal the saintess tainted by demonic energy, then converse with her.】

Shen Nian stared at his older sister sipping yogurt, lost in thought.

So you’re telling me my sister is the saintess, and yogurt is the holy water?

【Main Quest 1: Brave Youth, Become an Adventurer! Reward: Rookie Adventurer Title.】

【Side Quest 1: Find the Adorable Kitty! Reward: 1000 Gold Coins.】

Shen Nian: “Wait, I’m a high school senior here—did some guy who got isekai’d accidentally bind his system to me?”

Hold on, completing quests gives gold rewards?

Titles even boost stats?

Is this for real?

(A lighthearted, absurd campus comedy—not a revenge power fantasy.)