做尽温柔事只为你欢心
[zuò jĭn wēn róu shì zhĭ wéi nĭ huān xīn]
Translated as 'Do Everything Tenderness Only For Your Happiness', this indicates that the person named promises or desires to act in loving and tender ways for someone's (most likely a beloved one's) happiness exclusively. A rather romantic self-introduction.