予你欢喜城
[yŭ nĭ huān xĭ chéng]
This online name '予你欢喜城' translates to 'Building a city full of joy for you.' It conveys a deep affection where one is willing to construct a world filled only with happiness and joy solely for someone they love. In its background, it symbolizes devotion and the pure heart one can put into making others happy.