MTL - The More They Object, the More It Means I Did the Right Thing - Chapter 89 SSS level evaluation

The main character is reborn as a character from a game he played in his previous life. This character falls into ruin along with the villainess, spending the last of their years together. A man named Kururi Helan.

He is a young man without a spirit root. It is believed that this denies him the chance at cultivation. However, a mysterious lady imparts a Supreme Demon Classic to him and from then on, he starts his path of cultivation.
He undergoes a total transformation to emerge as the most fearsome and powerful fiendish demon in his era, that even immortals and fiends are fearful of him, and saints are at his beck and call.
Mastering the Supreme Demon Classic is the turning point in his life. He is able to unleash his immense and divine power from within, illuminating the entire universe!

- Description from Novelupdates

A man is reborn into the world of Avatar: The Last Air Bender as a waterbender from Katara's tribe. Best of all, he was the same age as her, and he had a system with him to help.He knows the future and a system that lets him continuously get stronger by completing quests or long-term missions, as well as giving him the ability to copy abilities from others for himself. He will become invincible in the world of Avatar, even more so than the Avatar himself.

After she wakes up from being reborn, she becomes the little pitiful girl who is sent into a mental hospital by her biological elder brothers. Her biological elder brothers only dote on the fake young miss, the ‘younger sister’ who is switched at birth. She despises her in any possible way. So, Pei Yunge makes trouble and deals with the fake young miss, waiting for them to tell her to scram. However, the brothers’ attitudes are extremely strange.President Qin sneers. “My younger sister destroyed a shop? Buy the entire mall for my younger sister to trash!”Best Actor Qin raises an eyebrow. “She sent herself to the casting couch? What am I then, dead?”God Qin’s expression is dark. “You repeatedly played tricks and bullied Ge’er. Did you think I was blind?”Pei Yunge: “?”#Scum brothers have days when they’re abnormal too#…After returning to eight years ago, before the Qin family goes bankrupt, the brothers only cares about their biological younger sister that died so terribly because of them. So what if she is talentless and stupid? She remains the apple of their eye, one they swear to protect and love! Just as the brothers take determined steps and find Pei Yunge…“My Yunyun got first place in the world championship again. What a good girl.” The refined and dignified man smiles charmingly.After her real identity is exposed, she is seethes with rage. She grabs the man and bites him. “Don’t even think about humoring me home.”The three biological brothers: “?”#What is with this strange development and wild man#[Doted on by everyone + Identity Reveal] [An extremely cool and foxy boss and a President wolf in sheep’s clothing]