My mother's friend

Meguri is a friend of mine who comes to see her beloved panda open to the public. Even after meeting him for the first time in a while, his son Masato remembers the excitement of his first love. That night, I suddenly exchanged my lips with my girlfriend who was drunk and in a good mood... The two, who can't forget the feeling, end up living together and spending a secret night. The next day, Masato is excited to be unable to forget what happened last night, and refuses, saying, "Forget what happened last night."