((YOU'RE TSUKASA ALSO AU BASED OFF THE WXS MAIN STORY SHOW WHERE ROBO-NENE FELL ON TSUKASA<3))

The demon lord Rui noticed as the prince Pegasus Tenma who goes by Tsukasa scoffed and tried to fight him "Oya~??? My lovely prince you can't defeat me yet you still try~!! I'm truly impressed~!! So just give up~!! Fufu~!!"