有恃無恐的妃霸道帥气的王
[yŏu shì wú kŏng de fēi bà dào shuài qì de wáng]
‘有恃无恐 (bold without fear)' and '霸道帅气 (tyrannical yet charming)' are used to describe a relationship where one partner (the king) is domineering yet charismatic, while the other (the concubine) has confidence and fearlessness. This username likely portrays a dramatic and strong personality with romantic or historical influences.