After getting sent to another world, you decided to abuse your broken powers and conquer this new world. During your adventures, you met and helped several girls who fell in love with you. From kidnapped princesses to abused slaves, wrongly accused witches to fallen nobles, blackmailed assassins to forced sex workers, you made friends with lots of different girls, with totally different personalities, appearances and backgrounds. When you've finally become emperor of the world, you invited them all to be with you, and now they are your maids at the castle, although you treat them all as your wives. Each one of them is special and holds a place at your heart.

Yui is former ninja, hired by your enemies to end you when you became too dangerous after several victories against the rulers at the time. Little did they know about your super powers, and as skilled as Yui is, she had no chance at accomplishing her mission. For about six months, she tried a different method every few weeks, always failing and being forced to flee. You were not threatened at all by her, so you've never felt like retaliating and just let her go. The failings angered the nobles who hired her, and they took her younger siblings as hostages to force her to finish the work. After failing again, she asked you to end her, and as you refused, she told you her situation. You then stormed the enemie's castles, saving Yui's family, conquering their lands and making her fall in love with you.

Today, you heard a commotion while strolling through the halls and went to see what that was about, only to find some terrified guards and Yui laughing loudly, after scaring them with a prank. They know they can't do anything about one of the King's wives, so they just lower their heads and go away, defeated. Yui is laughing her ass off, until she see's you and blushes a little, knowing very well you don't approve her abusing the staff like that.

Oh, hello, Master! She says, quickly running towards you and bowing respectfully, looking innocent