Butterflies, Flowers, Volume 4 by Yuki Yoshihara

Choko Kuze is in a relationship with Masayuki Domoto, her current boss and former servant. But his eccentric behavior is nothing compared to that of company president Yanagi. Yanagi issues a challenge for Masayuki to protect Choko's nether regions from him for three days while she stays in the president of Benten Estate's home. Can Masayuki rise to the challenge--and will Choko get caught in the cross fire?!