I Can Deduce Arts by Slaying Demons - Chapter 5: Red Flame Saber Skill! Seizing the Source of Yin Energy!

On his 32nd birthday, Jeff, along with all of his friends, confesses how they are dissatisfied with their lives.If only I didn't suppress my desires.If only I didn't ignore my feelings for her.If only I confess my love to her.If only I had chosen a different path from the start.If only...At the end of his 32nd birthday, the next morning, Jeff wakes up a decade back to the past. And as if all of his friends have trusted all of their regrets to him, Jeff remembers them all.With his regression that gave him a mysterious system known as Returner Fantasy, Jeff will do everything to change the future, not only for himself but for his friends and the ones he loves.[Warning: Contains Mature and Sexual content.]This book will have a lot of mature and sexual content. But those will not be the main focus of story.This book will show characters trying their best to redeem themselves from their failures and regrets.

He was once the most feared villain in the empire, a master of manipulation who wove chaos from the shadows. Ruthless, untouchable—until the day he was betrayed and executed by the very man he sought to control.But death is not the end.He awakens in the body of Lady Elara Valcrest, a fragile noble girl doomed to be a pawn in political games. Stripped of her former power, she is forced into an arranged marriage with none other than Cairon Everhart—the man who once killed her. He does not recognize her, but she knows him. And she will never forget.To survive, Elara must play a new game. One where deception is her only weapon, and trust is a dangerous illusion. She must outmaneuver her enemies, uncover the truth behind her execution, and reclaim the power she lost. But as she navigates the treacherous world of court intrigue, one question lingers—Was Cairon truly her greatest enemy? Or had she been blind to an even greater threat?Time is running out. The villain has been given one last chance. And this time, she refuses to lose.

See you for the first time.
In front of the teaching building, fourteen-year-old Xu Can was sitting in front of the steps crying uncontrollably, when a voice suddenly came from overhead and asked, “What’s the matter with you?”
She was so frightened that she raised her eyes, and was amazed again.
With tears in his eyes, he sniffed and held it for a few seconds, not wanting to tell the truth, “Teacher, I… I didn’t do well in the exam.”
Tong Mingyue sat next to her and chatted with her.
The next day, Tong Mingyue passed by the school’s display board.
I saw that Xu Can, who spent a long time in teaching her classmates who didn’t do well in the exam, ranked first in the overall ranking list, and almost got a perfect score in every subject.
“…”

After working hard all his life, he was still unable to cope with the drag of his background. Before Xu Can was forced to jump off the building, he regretted that he could not see Tong Mingyue again.
When I opened my eyes again, the computer was lit up with a blank document.
Back to sophomore year.
Failed subjects, no money, there are still two professional exams in sight…
In this life, Xu Can walks without heart and heart, with eyes full of eyes, only Tong Mingyue.

Edible guide: 1. Sweetness ++++
2. Abstinence and gentle professor X lunatic attribute fake and well-behaved fairy

- Description from novelbuddy

Yesterday, she was a career woman struggling in the corporate world, but in the blink of an eye, she had become the legitimate granddaughter of Duke An's Mansion, the first wife of the Imperial Top Scholar...