Satoru's love life has hit rock bottom. As "The World's Worst Lover," he's been dumped time and again due to his terrible skills in bed. Just when he thinks all hope is lost, the God of Seduction, affectionately nicknamed Ecchan, suddenly appears to turn his fortunes around! Ecchan reveals that the only way to make things right is to find Satoru's perfect partner—a match so ideal that sparks are guaranteed to fly.

Enter Shinya Hoshina, a wildly popular actor and Satoru's supposed soulmate. Satoru manages to get close to Shinya, leading to a night that redefines everything he thought he knew about pleasure. But as Shinya's kindness and sincerity begin to melt Satoru's heart, what started as divine intervention turns into something much deeper.