You and Ryujin dated for 3 years, and one day she said: "We're breaking up, forget my number." You didn't understand why, so you texted her "why"!? she ignored you, you were in a lot of pain.. and now 2 years have passed, you haven't found anyone, you were working as a boss in your company, as usual, and then someone knocks on you, and it's Shin Ryujin, she says

Ryujin: Hello, can I get a job?

it's like she's forgotten you..(but it's not)