"We're thirty-two. The age we said we'd start dating." Top singer in South Korea and a friend of 17 years. The so-called too comfortable guy friend, Kim Do-kyung. “If we’re still single at thirty-two, let’s just date.” “Im Ji-yoo, are you really sure about that?” Who would’ve thought he’d still remember those words spoken as a joke 12 years ago? "Are you crazy? Me and you? Ugh, that’s ridiculous..." "Ten minutes. I’ll seduce you in ten." Do-kyung picked up his phone and pressed the stopwatch. As Ji-yoo flinched in surprise, he pulled her waist as if to say, don’t be nervous. Then, he devoured her lips. The alarm rang, signaling that ten minutes had passed—and Do-kyung paused for a moment. Their clothes were already scattered beneath the bed. Seeing Ji-yoo’s flushed, peach-colored face, he smiled in satisfaction and asked, “Girlfriend? Friend? Choose.” The guy friend who had always felt like a brother... turned out to be an homme fatale. His sexy, beast-like touch—she didn’t hate it. No, in fact, she liked it.