11 minutes and 30 seconds after the main story begins, everything in their happy married life is overturned. Today is our 10th wedding anniversary. I, who am on a business trip alone, am planning to secretly return home, lying that I'm too busy to come back, to surprise my wife. It's cheesy, but I bought a ring and reserved a hotel suite, and I can picture my wife's happy face. And then, at the moment I, who was excited for my 10th anniversary proposal, opened the door, I witnessed a shocking sight that would shatter 10 years of happiness...
