On a scorching summer day over 35 degrees Celsius, I visited my senior coworker's family home on my day off. We ate somen noodles together, both drenched in sweat. His mother was elegant and beautiful, and I couldn't take my eyes off her. Sweat trickling down her neck, glistening on her cleavage, seeping from under her arms—I was struck by a sudden shock, realizing she had the exact same eyes as the horny, unsatisfied housewife I'd met recently on a dating site.