Life Simulation: I Caused the Female Sword Immortal to Regret Forever - Chapter 14:

“Aria,” he said softly. “Today is your birthday.”It wasn't a question, but I nodded nevertheless.“The moon is full tonight,” he added, his voice quiet. “You will attend the ceremony.”“Of course, Elder,” I replied, puzzled. All eighteen-year-olds attended the ceremony. It was essential.He leaned in, smelling gently. “You already feel it, don't you? ”The change.My heartbeat skipped. “What change?”Elder Malin's eyes narrowed. Interesting. “Very interesting.” He reached inside his pocket and retrieved a little pouch. “Wear this tonight.”I accepted it hesitantly. Inside was a simple moonstone pendant with a leather cord.“But this is for—”“Wear it,” he interjected. “Hide it under your clothes if you must, but wear it.”Moonstones were precious. They aided our connection to the Moon Goddess during ceremonies. However, they were only given to wolves from influential families (Alphas and Betas). Not Omegas like me.“Why?” I questioned.Elder Malin glanced at Mira before returning his attention to me. “Because someone is harboring secrets about you, child. And tonight, those secrets may be revealed.”I never mattered in our pack. Omegas like me serve, submit, and survive. We don't dream of love. We don't dream of power.She was the future Luna. I was just the girl who watched from the shadows.But everything changed on my 18th birthday.I felt the bond. I met my mate.One of the Alpha's sons.But the Alpha has triplets, and I felt the mate bond with all three and it seems the three of them felt it too — three perfect warriors, three powerful Alphas, three secrets buried beneath the surface.One of them is my destiny.One of them is lying.And one of them might be the death of me.The Moon Goddess doesn't make mistakes... but this time, I think she might've given me too much to handle.

Su Ran, a music prodigy, woke up transmigrated into a book.

At that point in time, the main story arc in the book had already been completed. As a villainess female supporting character, not only did she need to take over the original owner’s pitiful life in poverty, she also gained an instant son right at his rebellious period.

Ten or so more years from then, the son would turn into a twisted, evil villain. He would appear in one of the extra chapters to pick on the male and female lead’s children.

***

Su Ran: Son, you shouldn’t be too outstanding.
Su Han: Why not?
Su Ran: ’cause you will be killed.

Su Ran: Son, would you like to learn music from me and become a zen, little fairy boy who only needs to drink dew.
Su Han: No, I want to go into business so I can support you.

- Description from Novelupdates

Ye Zhen, a female Ph.D. in the Department of Mathematics of Huada University, changed her career to enter the entertainment industry in order to investigate the death of her birth father, Film Emperor Ye Yi. During her interview, she accidentally made CEO Rong Cheng Jue lose face in public. Yet Rong Cheng Jue, unlike what was to be expected, didn’t take old grudges into account and let Ye Zhen join his company. When everyone thought Ye Zhen would become Rong Cheng Jue’s personal secretary, she actually joined the entertainment department. After several twists and turns, Ye Zhen became an errand reporter for Rongcheng Entertainment’s “Treasures of Great Tang”.

Her colleagues’ bullying towards her, the pressure of changing career, and the many obstacles in her investigation all left her confused. Under Rong Cheng Jue’s silent guardianship, she didn’t forget her original purpose, overcame every obstacle, and eventually became an ace producer.

Ye Zhen and Rong Cheng Jue shared a common belief : no matter how bleak the hope is, how thorny and dark is the road ahead, they had only one thought in their hearts: to uncover the truth, and therefore bring peace to the soul of the Film Emperor Ye Yi.

- Description from Novelupdates

“It was the year 2030 AD. The origin universe game “Divine Revelation” made its grand debut. In this game, the in-game currency could be exchanged for real money, which attracted countless players. Even countries were getting ready to enter the game. But no one knew that Li Yi who had fallen in the War of the Gods returned to this very day when the game was launched with ten years worth of memories from the game. And this time, Li Yi received the SSS Rank Talent – Blood Devour. [SSS Rank Talent, Blood Devour: After slaying any creature, the player would gain 1% fixed Health Point, and life regeneration speed. The effect of this talent can be stacked indefinitely] [Notification: You slew an LV1 Sika Deer, received 1 HP, 0.01 HP regeneration/second] [Notification: You slew an LV5 Elite Goblin, received 7 HP, 0.07 HP regeneration/second] [Notification: You slew an LV10 Legendary Boss – Aoi Flame Green Dragon, received…...] From them, an invincible being who had a health bar even longer than bosses were added to the game. “Report: Li Yi is cheating, the HP of the entire dungeon’s monsters added together is still less than his!” “Report: We attacked Li Yi with the joined force of a 1000 players army, but he only lost a slither of health!” “Report: Please tell me, how are we supposed to attack the city with Li YI standing in front of its gates?

Many years later, when the game started to fuse with reality, and the War of the Gods began, Li Yi stood at the front alone and faced the gods of the worlds. Only then did the players wake up, “Dear Sir, we’re begging you, please have even more HP!””