Tang Wulin has short black hair and a stature slightly taller than others of the same age. However, his most attractive features are his large, clear black eyes and long eyelashes which wouldn't lose to a girl at all. Even with his commoner’s clothing, his outstanding appearance could easily draw the eyes of others. Only the word "beautiful" is fitting to describe him.
As an adult, he has grown more handsome and his hair has grown longer over his shoulders.
After completing the Sea God Trials, his hair turned blue like his father.
Tang Wulin is an honest and kindhearted individual, which is apparent when he saved Na'Er from a group of teenagers, who were trying to kidnap her and sell her off. He is incredibly hardworking, not letting the words of others affect him negatively. Also having been raised in an impoverished family, he is significantly more sensible and mature than others of his age.
In Soul Land 4, due to his amnesia, Wulin acts rather stoic. He talks very little and regularly has an emotionless expression. Still, he retains his kind heart, being grateful to Le Qingling for taking him in.
But in Soul Land 4 volume 14, when he met with Gu Yuena, his heart was open for her again, and he turned back to the outgoing man.
in Soul Land 4 volume 16, after he and Xuanyu both knew each other's father-son relationship, he became quite stable and mature.
A trash martial soul and a defective spirit soul. That’s very fitting.
— Tang Wulin mocked himself
‘Gu Yue, wait for me. I’ll surely accompany you as we go through whatever difficulty that lies before us. Wait for me to become powerful!’
Ten thousand years ago, Shrek College was destroyed by god-level soul guided missiles. The darkest time since Shrek Academy was founded. It was also the time when the abyss attacked and almost destroyed the Federation. At that time, the master of ZTE at Shrek Academy appeared. It was he who led the history of that generation. The Seven Devils of Skrek, with the help of the Tang Sect, rebuilt Shrek, and established the current Shrek city. It was he who planted the seeds of life on the bottom of Poseidon Lake, and finally absorbed the energy of the abyss plane to achieve the Eternal Tree. He is a hero of the Federation and one of the most important powers in the history of Shrek College. The Tang Sect Gatekeeper, the Poseidon Pavilion Master, and Feng Yunyun, who eventually fell with the Silver Dragon King, Dragon King Douro, Golden Dragon Moon Song Tang Wulin.
Tang Wulin is the only known person to be both a Divine Blacksmith and a God rank spirit master.
When Tang Wulin heavenly refines metals alone, he works naked to not deal with the problem of thunder tribulation continuously destroying his clothes. If there are people observing his heavenly refinement, he dresses normally.
With the God rank Seven-Colored Lotus Flame he obtain during his group's challenge of the War God Temple, Tang Wulin evolved his heavenly refinement level, resulting in a God rank heavenly refined metal that can alone become a piece of his 4-word Battle Armor without the need to apply circuits to the 3-word Battle Armor. Precisely, this new metal tier disdains circuits on its body and can easily become the 4-word Battle Armor piece by its will alone through absorbing the "information" from the 3-word Battle Armor and leaving the dirty husk, for the metal is on the level of a Divine Tool. Tang Wulin is the only currently known Divine Blacksmith who can create a divine tool tier 4-word Battle Armor and its only possessor.
He is the first Elder God in the history of the Douluo Federation.