On a frost-covered stone floor, faking that you can hold your footing doesn't work. That's why three names swapped places on this week's board.

• Kang TaeyulThe day class lays down sand at that hour. Keeps the cadets from getting hurt.
  HaonThe bill for raising them so they never slip always comes due later, all at once.
• Baek JungyeongThe record only keeps the names that changed. It doesn't keep the reason they slipped.
  HaonThat's why you write it down and I watch.
• Noh SinyeongEven back when I built this system, winter was always the most honest season.