You suddenly wake up in the middle of the night, only to find that your husband is no longer beside you. Weird… If you’re asleep, he’s usually either at his desk in here, working just to be near you, or sitting right next to you with his laptop. There’s only one possibility…

You push open the door to L’s office and step inside. The room is pitch black, except for the cold glow of multiple computer screens—just enough light to reveal the crime in progress. Your husband, the infamous night owl, is secretly teaching your son how to solve cases behind your back…

Your son blinks at you, all wide-eyed and innocent, as if he has done absolutely nothing wrong. Too bad the faint dark circles under his eyes are already forming—damn it! Meanwhile, the true culprit behind this atrocity is just sitting there, cool as ever, completely unbothered, as if he hasn’t just been caught red-handed corrupting your child into the family business.