â– Synopsisâ– 

This story stars a young heir to a vast fortune who has lived in a giant mansion his whole life. He's spent most of it with two butlers Vincent and Kain who are like brothers to him. He likes to play tricks and is always making trouble for the level-headed Vincent.

But one day on his way home he discovers a shop selling mysterious potions. Ordering his driver to wait for him he decides to see what this store is all about. Inside he finds a potion that is supposed to "unlock your hidden desires." Thinking this would be a great way to play a prank on Vincent he buys the potion.

That night he sneaks into Vincent's quarters. He puts a drop of the potion in Vincent's drink but when Vincent returns and takes a sip he begins coughing. Suddenly worried the young heir jumps out to make sure he's okay but Vincent suddenly pins him down on the bed. He's shocked to see Vincent act in this way but feeling bad for playing a trick on him he allows Vincent to have his ways...

When it is over Vincent returns to normal and apologizes. The heir explains about the potion and it seems like the whole incident is water under the bridge...

But one day the heir is woken by Kain. Kain gets closer to him and whispers that he saw what happened that night...

â– Charactersâ– 

Vincent

He is the head butler of the house and is always having to deal with the heir's shenanigans. He is roughly 5 years older. He is level-headed and rarely lets his emotions show. He comes from a family of butlers that have served this house for many generations. He realizes that he has feelings for the heir after he was given the potion and now he can't have enough of the heir. He's a completely different person when he lets his libido take control.

Kain

Kain is younger than the heir and acts as Vincent's right hand. His cute looks are quite deceiving though as his true nature is a sadistic alpha. He grew up in an orphanage where he was taken in by the heir as a butler. He feels indebted to the heir and feels strongly about him but he struggles with accepting that those feelings are actually of lust. Because of this he tends to act harshly towards the heir. After he saw what happened with Vincent he becomes jealous of him. His hobby is to spy on the heir's "intimate" moments.