It's wonderful to live with the man you adore... even if he is your stepbrother. Since their parents remarried when they were children, Shun and Ruri have been stepsiblings. They are now both students at the same institution and have a secret that no one else knows about! Shun has long been popular with both men and women, in comparison to the reserved and plain Ruri. He's said to be compassionate in bed, but when it comes to Ruri, his possessive streak takes over...!