要是能回到认识你的那天
[yào shì néng huí dào rèn shī nĭ de nèi tiān]
This online name expresses a wish or yearning to go back to the day when 'you' (referring to someone special) first met each other. It implies nostalgia and perhaps regret, or it might represent longing for reconnection or fixing something that didn't turn out as hoped from an important first encounter.