Should I add the surname before the given name in fanfic?

Su Yang was an average university student in Shanghai when he received a system that allowed him to add points to things. The point system provided him with missions and by clearing them, he would gain points. Add a point into an object, the object will receive a special ability; add a point into a plant, the plant will come alive; add points on himself, he will get talents or superpowers. With the mysterious point system in hand, Su Yang aimed to become rich and alter his fate. On his path towards success, he encountered many interesting matters and people, including famous actresses and business tycoons. Fueled by determination, Su Yang set his sight on adding points into all things to help him achieve his goal.

MC IS NOT GAY AND NO NTR AND NO YAOI — Harry Potter fanfic, what else can you want? What more do you need for explanation? — Patreon is Patreon.com/crossark Discord is https://discord.gg/xkyC6Bn

I have decided to repost this under the same name. This was my first FF so the quality left to be desired. Mostly the same while fixing huge plot holes, spelling, and grammar.

"Blake traveled across parallel worlds and arrived at the Cretaceous Period! What’s more, he became a Tyrannosaurus rex! Fortunately, he obtained the Evolution Template system! [Ding! Super Tyrannosaurus template unlocking progress: 100%] Blake transformed into a Super Tyrannosaurus! [Ding! The King of Monsters template is now unlocked!] Just when it was unlocked to 25%, humans from the future arrived at the Cretaceous Period through a wormhole! Facing the prehistoric behemoth, all researchers were shocked! “Oh! My! God! I can’t believe my eyes!” “A monster! It’s a monster! I knew it! I knew that the shows I watched when I was a kid aren’t cartoons! They are documentaries!” “How can it look so much like Godzilla? Oh my goodness! Could it really be Godzilla?!” Blake looked at the tiny researchers in front of him, then pointed his finger at his belly and giant abyssal mouth. What are you looking at? I am a little hungry!"

"A Villainess should be strong," she thought as she vaporized an entire lake. The day Estelle Clareste was born, she already had the memories of Kirisaki Reina, a 21-year-old woman living in modern Japan. From a Villainous Duke's daughter, to the world's leader, and suddenly a Goddess?! Estelle's past, was it as simple as she first thought? Or was there something more lurking behind? Will she achieve her goals, or will she meet her downfall before that? -Photo not mine, I found it on Pinterest ^^-

Dropped. Don't read this. *** Various monsters came out from mysterious gates that appeared all over the world. Along with this incident, humans also gained power and were called hunters. Radmilo Laiv is a hunter with the power to control time. He spent his life serving the world government and becoming a hero. However, he was killed because his power was considered a threat to the government. It was a stroke of luck that Radmilo could return to the past because of his powers. In this life, he doesn’t want to be a hero anymore. Should he play the evil role and become a villain? *** The cover is mine, commissioned by @erminea_ on IG 暂停。