Read manga: Reijou Hanayome Keiji Choukyou -Mukuna Tsubomi Wa Yoru Hiraku-

manga
Summary:

“Young lady, this is not love — this is training”.The young lady from Zennomiya Household, Tsubomi, as a preparation before her wedding. Suddenly, the childhood friend who is also her household butler, Yoshino, pushed her on the bed. A face she didn’t know from her long time friend.Before she could think with her head, as the heat and numbness that lingering in her body caused the flowers to bloom, he said a cold word, “This is not love.”However, her mind and body seems to be drawn to him...!?The young lady and a mere butler. The bittersweet love story of master and servant is about to begin...