Douluo Dalu 2: The True God King - Chapter 3: [DD2]:

... "Dragon God Seal... I possess the power of the Dragon God. No wonder Uncle Tian and Aunt Bi have taken such good care of me since I was little," Su Yu thought as he nestled in Uncle Tian's arms, his mind racing.

Uncle Tian, Aunt Bi, golden eyes, and the green dress—they were both exceptionally powerful beings.

With all these obvious clues, if he still couldn't guess their identities, he might as well find a rope and hang himself.

Su Yu had already figured it out long ago ...