棱角少年甜心少女
[léng jiăo shăo nián tián xīn shăo nǚ]
This username juxtaposes two contrasting personalities: 'Lengjiao Shao Nian' which means a teenage boy with sharp edges (a metaphor for someone young who hasn't been fully shaped by the world yet) and 'Tianxin Shao nv' referring to a sweet hearted, innocent teenage girl. This implies duality in one person - a blend of masculine youthfulness and feminine innocence.