我愿做你的lt蝴蝶少女gt我愿做你的lt狼族少年gt
[wŏ yuàn zuò nĭ de lt hú dié shăo nǚ gt wŏ yuàn zuò nĭ de lt láng zú shăo nián gt]
This username translates to 'I wish to be your butterfly maiden <but I also wish> to be your werewolf boy.' It likely comes from characters in anime, novels, or other media and shows a playful wish to transform into different romantic ideals based on context.