Seo Yechan, the guy who moved in next door, is a sex addict who can’t live without having sex at least once a day. Ko Seokjun, his neighbor, suffers from hearing the noises of Yechan’s promiscuity every night, and becomes unable to get an erection anymore. Finally, in a moment of desperation, Ko Seokjun prays to God to get rid of Seo Yechan’s dick. Strangely, from that day forward, Seokjun stops hearing moaning from nextdoor, and Yechan tells him the shocking news that his dick is missing. “This is definitely my fault, so I need to help fix it, but… it's pissing me off that this guy just sees me as a source of semen.” A chaotic romance between ‘the man who wanted to get rid of the other’s dick’ and ‘the man who needs to get it back’!