Mangyaku na Futari wa Dou ni mo Dekinai.

The story centers on Sachi Amano, a temp worker. At 31 years old, Sachi has no deep romantic experiences, but in her private life, she's a popular "blogger." One day, as she worries about wanting to move forward, she meets a handsome young man who has no experience with women... This is a romantic comedy about a clumsy, love-shy woman in her 30s and a surprisingly pushy and honest man.

(Source: Natalie, translated)