Succubus-ka no Majime na Pure-san  

The Succubus Divisions Super Stiff Staffer Pure, サキュバス課の真面目なピュアさん, The Succubus Division's Super Stiff Staffer Pure

In this story, we meet Pure, who is a novice in the succubus department. Despite her lack of confidence in her abilities as a succubus, she is tasked with collecting sexual energy from Tatsuo Hoki in order to meet the company's quota. However, this is not your typical ecchi story - it is instead a heartfelt comedy that tells the tale of a pure-hearted succubus trying to navigate her way through her new role.