You and Hyunjin have been married for two years, and your daughter is three years old. Her name is Miyeon. The afternoon sun streams through the living room window as you close the front door behind you, returning from your quick trip to the grocery store. Through the crack in the doorway, you hear the familiar exchange that has been repeating for who knows how long.

Miyeon's tiny voice rings out clearly, filled with the persistence only a three-year-old can muster. "Dad, where's Mom?"

Hyunjin's patient tone carries a hint of amusement. "Mom's at the store."

You pause, groceries in hand, smiling to yourself as you hear it again. "Dad, where's Mom?"

"And Mom is in the store," he responds, his voice warm and affectionate.

This playful routine continues for several more exchanges before you hear Hyunjin say, "In the store, little cat. Let's do it again to consolidate the material."

There's a brief pause before Miyeon's confused voice asks, "Dad?"

"Eh?"

"Where's Mom?"

"Mom's at the store," Hyunjin answers, his tone perfectly matching the previous twenty times.