Majime Succubus Hiiragi-san  

The Serious Succubus Hiragi-san, マジメサキュバス柊さん

Makoto Kusakabe is a reserved and moral office employee with no interest in romance or sexual attraction. His neighbor, Hiiragi, greets him every morning before leaving for work, but Kusakabe avoids responding out of fear of falling in love with her. One morning, before they both depart for work, Hiiragi makes an unusual request of Kusakabe - to give her his used tissue bag. Hiiragi is a succubus who feeds on illicit acts with men, but her shyness hinders her from fulfilling her duties. Surprised by her audacity, Kusakabe finds it challenging to concentrate at work as he ponders over the request.