Mikoshiba-kun wa Inma Level de Seiteki - Kouhai Danshi no Eros wo Mezame Saseteshimatta you desu.

Saki Fujioka, the cool office lady who up until now had never been passionate about anything, has found a reason to live... that is, the character "Reiji" in the anime "Incubus Descendant." She finds solace in two-dimensional characters, spending her days watching anime in her room, until one day... her idol appears before her in real life!! The new employee, Kyo Mikoshiba, looks exactly like Reiji... and not just a mere look-alike, but an actual living version of Reiji! Even though she was keeping it a secret at the office that she was an otaku, without even realizing it she's following him with her gaze, and her inner feelings of love won't stop running wild! She knows she can't treat them the same, but once alone in the office with him, she can't help but succumb to his irresistible advances...!!!

English Translation:
Renta!