Yaoi/ shounen ai / BL Isekai

Modern thief transmigrated as bullied 3rd son. Promised as male concubine to a rumored Tyranical Prince. Let's steal his money and run!

Overbearing cunning ML x head strong money lover MC.

My job is to play the perfect villain. But my system is uncooperative. The little hero almost dyed, forcing me to take a fake persona to help him. But at the ultimate battle my grown up kid kissed me instead of killing me?! What? NO! MY MISSION!!!

OP "master" (secretly main villain) x soon-to-be-OP "innocent" future hero. Funny and cute. Not great literature by no mean but A fun light read to pass time.