Affectionate But Heartless

Korean national archer Hwang Jeongho once suffered a catastrophic injury that transformed his shoulder into an erogenous zone, forcing him into retirement. Since then, he's avoided all physical contact and worked as a delivery driver. One day, by chance, he ends up delivering a package to Kang Junhyeok, the current national archery champion.

Suddenly, Junhyeok calls him by name, grabs his shoulder—and Jeongho is left completely helpless against the overwhelming sensation. Before he can even regain his composure, the imposing man before him delivers an even more bewildering remark:
"Since it’s probably my fault, I’ll take responsibility and help you."
But… how exactly does he plan to "help"?