I received a call from Nanami, who I hadn't seen in eight years since graduating from college. She said we were all going to get together on the eve of a classmate's wedding, so let's go together. Nanami and I used to have a sex friend relationship, so I left home without telling my current girlfriend. Eight years ago, we had sex again and again, without her knowing. I wonder what Nanami was thinking when she contacted me? Does she remember those days? Maybe she's contacting me because she wants to get back together with me? No way... While I was thinking about this, the time to meet up with Nanami was approaching.