Amaeta Kemono no Shitsukekata

Synopsis

Kazuki has been working as intern under an alias in his father's company. Though he's happily in love with Saijou Chiharu, he couldn't help feeling jealous when Chiharu became the center of attention in a mixer party. He then decided to withhold sex on Chiharu! How long would he last?! Note: This is the 12th volume in the Kemono series.