Demon Slayer : The Silent Journey - Chapter 9: Rengoku Kyojiro!!

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

Jack transmigrated to a parallel world and locked on to a Judge System that provided rewards for punishing evil. Hence, an Adjudicator of Death who stood above the law was hence born.

In the 21st century, Wu Yue originally thought she was a lonely ghost, but she didn’t know that she was from the 1980s until she was reborn back to her own body.

After all these years of losing her soul, she has always been a fool.

Her father also ordered her a baby kiss?

The other party is still the sweet pastry that everyone wants to marry.

Wu Yue, who has been nurtured in the new era, decided to get rid of this fiance who thought she was a fool.

But she didn’t expect that there was a tall person waiting for her in front of her.

The new book has been opened, {the world is not as good as you}

- Description from novelbuddy

Soma, a college student and also an orphan, who is on his way back after finishing his part-time job, plus his college in the morning, made his life feel monotonous. Still, of course, he didn't have any complaints about the situation he is currently in.To distracted his exhausted body and mind, Soma always finding some times to enjoy the web novels.As a person who likes to immerse himself in the world of novels to find some enjoyment, every day at night, he always reads a web novel he has read for years, and it is called Chronicles Saga.***Chronicles Saga is one of the many web novels that were serialized years ago, and it's already nearing its end game with a couple of final chapters.The story was depicted in an alternate Earth where Magic, Dungeons, Sword, and System exist.It tells the story of a young man who holds high justice in his heart named Leon, who has been chosen as a savior trying to save the world from the incoming disaster in the future by the great Demon Lord.***Then, an unimaginable thing happened to Soma when he suddenly got transmigrated inside the story he read for years. Not as a protagonist who led the story or a Villain but as a 'Side Character'.Soma was transmigrated inside the body of a young man with the same name.To make things much worse, he is being transmigrated into one of the crucial scenes, which becomes a turning point for one of his favorite Heroines in the novel.Then, one thing led to another as Soma was thrown into multiple events. He discovered that the boy named Soma had an unexpected mysterious background and past coming from a ‘Side Character’ who had no role in the main stories.Follow Soma’s story inside the novel world he transferred into as a Side character that will overthrow the story and the world, with his reliable comrades.