Manga by author Takagi Ryou - Status ongoing

A direct sequel of Oujisama Game.1) King Game -The 2nd prince, Renge, of our favorite royal family is sent to a neighboring country as collateral in a foreign relations deal. When things turn sour between their countries, he becomes a virtual hostage of a tyrant King, Ouga.2) King Game: 6th Prince vs 3rd Prince -Homura, 3rd prince, fell in love in his brother, 6th prince, Airi, when they were kids. Younger prince was very sickly at that time and his brother started to learn medicine (with poor results) in order to heal him. Now they are grown up, they are lovers (by name only) and Airi is bigger and no longer sick or weak, but not in Homura eyes. 6th prince decided to change that.3) Kaizoku Game: Pirate vs 5th Prince -5th prince, Yuuri tried escape from castle and ended on pirate ship that belonged to Kuuron. From this point young prince starts living on ship and being the captain's "woman".

From Evil Empire:Chisato is a beautiful 35 year old writer (who looks like 18 really), father of Riju - a cute 15 year old boy. Chisato's hobby is to drive away all of Riju's friends because he thinks they want to rape his precious child. So he shows his good side to these boys while he poisons the cake he brings them with a smile. However, there is one guy, Shunsuke, who doesn't fall for the tricks. But is Shunsuke really aiming for Riju? Who is that mysterious writer Chisato loves so much? And why is Chisato convinced that Riju's friends want to take advantage of him?[Evil Empire]