I, Arisa, moved to Tokyo from Osaka with the sole desire to erase my horrible past. Then, I met Tomonori at the company where I worked, got engaged, and was enjoying happy days. But then I got a voicemail from my ex-boyfriend...my horrible past was brought back to me. Tomonori had a big business meeting at the company, and my ex-boyfriend Kameda showed up. Kameda told my boss at work, Senmoto, about my past, and threatened me with it as a condition of the deal, toying with me. But my past self gradually started to emerge, and I was reminded of the pleasure...