Raising My Stepbrother Sure Isn't Easy

"Wanna try disciplining me again?"
Two stepbrothers, one long-suffering and one unruly, begin an unconventional life together under the same roof.

Asahi works from home and lives with Riku, his stepbrother seven years his junior. After finally reaching his breaking point with Riku's relentless selfish behavior, Asahi is caught off guard when Riku suggests that he "discipline him again." Though skeptical, Asahi agrees, and from that day on, Riku becomes surprisingly obedient. Then one night, Asahi is suddenly called to a bar, where he discovers a side of Riku he has never seen before: surrounded by unfamiliar men, completely unguarded, and radiating a dangerously seductive charm…

(Source: Coolmic)