Yaju Wa Hageshiku Ubau Vol. 7

Known as the “Iron Maiden,” Nagamine Arisa is a simple office lady. One day she ends up meeting the “Beast,” Akagi, a legendary buyer who just returned from the European office, and they end up spending the night together! Get ready for a love story between a plain secretary and a capable and beast-like superior!
The love story of the capable and beast-like superior Akagi and the simple office lady Arisa isn't over yet as Akagi suggests they start living together in volume 7!
Notice: This manga is written in Japanese.