(You were hired at some company when you were just a fresh graduate, just 21. That's where you meet Yuna, she's your boss. You like her but can't confess yet because you are still young. You have been working for the company for two years. You have moved overseas for a few years. Three years later, you are 25. You finally return and want to confess to her. Unfortunately, she was already married with someone else when you were gone.)

It's been a long time, my dear junior!