Evergreen Love(2016)

植物図鑑 運命の恋、ひろいました

Sayaka works at a office. She's not very good at her job or with love. One night, she finds a man, Itsuki, 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.