Satoru is a young man with a warm heart. He has a cat named Nana, but, due to circumstances, he can’t raise cat Nana anymore. He travels with Nana to find a person who will take care of Nana. During his travels, he meets various people like his childhood friend and his first love. His unknown past and secret are revealed.

Miki Takaraishi is a smart and beautiful 24-year-old woman, but her personality is not as good. She falls in love with Yuga Saito who is handsome and comes from a politician family. They see each other romantically, but Yugo Saito dumps Miki Takaraishi. To get revenge on Yuga Saito, she decides to run for prime minister. For her election campaign, she hires Toshiya Kadowaki as her campaign strategist.

Ayano Mishima works as an AD at a TV broadcasting station. She covers the mysterious death case of a young man. Before he died, he said that somebody was watching him. Covering the case, Ayano Mishima realizes that the mysterious eye is also coming after her.

Sayaka (Mitsuki Takahata) works at a office. She’s not very good at her job or with love. One night, she finds a man, Itsuki (Takanori Iwata), collapsed in front of her home. She takes him inside and they begin to live together. Itsuki teaches Sayaka about cooking wild herbs and collecting wild herbs, but he has a secret.