How Four Negative Skills = Unrivaled Synergy

Alvin is a young adventurer with an atrocious negative skill. In spite of his overwhelming strength, he's considered a nuisance by those around him and kicked out of his party. In the throes of despair, he hears a rumor about a dungeon where one can obtain an item that erases skills and recklessly decides to solo the boss. That is, until he meets Cocoru, a cleric who has also long suffered from her own negative skill. However, when Alvin learns the effect of her skill, he can't help but think… *"Couldn't our skills work well together?"* The negatives cancel each other out and become a positive! As their skills multiply together, nothing can stand in their way! This is the ultimate "mutual support" story for these unfortunate adventurers! (Source: Manga UP!)