Bondage Mansion / Mansion of Bondage

Yukio Mimura is a scion of a wealthy family, he never needed anything. He is a calm and well-mannered guy, and fulfilling the last will of his parents is the primary goal in his life. Yukio must find his lost brother and settle him in the family mansion. Soon he finds him and fulfills his parents' will, but his brother Hayato turned out to have different views on the inheritance, family property, and especially on Yukio's girlfriend, Reika...

 

Yukio Mimura and Reika Uehara are now living in there family's mansion peacefully. They have feelings for each and every other and are sure that they're going to live happy together. Recognized, Hayato Mimura, their cousin, arrives saying he wants them away from home. Yukio doesn't accept this and begins to consider any way they can settle this. Hayate happens using a contest that their fathers did to win the house before them. That contest is always to see who can be the first ones to break Reika. Whoever breaks her, would be the winner and keeper of the property.