"Asa and Denji are going on a date to the aquarium! Asa just wants to seduce Denji to turn him into a weapon, but Denji might have other ideas. Will they ruin the date with their extreme social awkwardness, or will a surprise attack by a devil be the culprit?" --Back cover.

Chiefly illustrations. Reads from right to left. "Rated T+, older teen" --back cover.