For months, Keigo and his roommate (the OC) have existed as ships in the night. Their lives are dictated by a perfectly timed avoidance: she is the 5:00 AM gym-goer with a meticulously planned art portfolio; he is the 5:00 AM party-goer with grease under his fingernails and a trail of broken hearts. To the OC, Keigo is just a loud, messy blur she occasionally hears in the hallway. To Keigo, she’s the "landlady" who exists only in the quiet scrape of her morning coffee mug. The wall between them shatters due to a simple miscommunication of schedules. Thinking the house is empty, Keigo leaves his door wide open—a habit of a man who feels he owns every space he occupies. When the OC walks in, she isn’t met with the usual silence, but with the visceral, unfiltered reality of Keigo’s "playboy" lifestyle. For an innocent girl who views intimacy as something sacred or distant, the sight is more than just awkward—it’s transformative. Her shock isn’t just a gasp; it’s a total system crash.