Sparks fly in this spinoff of Secret XXX featuring Shouhei's older brother Shizuma and Mito's younger brother Minato after a drunken fling!

Shizuma only drank that night to forget his heartbreak. He didn't intend to also forget Minato, the one-night stand who soothed his broken heart. And since Minato's not one to be forgotten, he hatches a plan of seduction...and revenge!

Shizuma finds out about Minato's plan-and subsequent wager-to seduce and then dump him. But when he rushes to Minato's apartment, an unknown man opens the door! Meanwhile, Minato is stuck wavering between his ever-deepening feelings for Shizuma and his deep-seated fear of falling in love. Can these two overcome misunderstandings and suspicion, or are there simply too many obstacles?