After traversing to the apocalypse, I am extremely delighted as a Demon Cultivator - Chapter 12 - The disciple of Qingfeng who was scared out of his wits.

A spin-off of the various works of Kamachi Kazuma. One day, Kamijou Touma (A Certain Magical Index) faced yet another misfortune. His toilet was broken and spraying water everywhere. As he was lamenting his misfortune, suddenly he appeared in a strange place along with Index and Misaka. Soon enough, more strange people begin appearing…

Includes:

A Certain Magical Index

Heavy Object

The Zashiki Warashi of Intellectual Village

The Circumstances Leading to Waltraute’s Marriage

A Simple Survey / A Simple Monitoring

Killer Princess and Deep End

Dark Girl X Cold Ruthless CEO Dad: A Story of RedemptionHuo Ning accidentally transmigrates into a female-oriented novel, becoming the pitiful daughter of the story’s antagonist.Before her arrival, this poor little girl was not only ab*sed by her birth mother but also treated as a plaything by her mother’s boyfriend, ultimately dying on a snowy night.The antagonist in the book is no pushover either. Used as a plot device by the original author, he’s solely focused on breaking up the main couple, ultimately meeting an accidental death.Huo Ning can’t stand by and watch. She not only latches onto the antagonist for protection but also helps him escape the protagonist’s plot armor, even personally sending their enemies to prison.Relying on her own abilities, she gradually changes the antagonist’s storyline while healing the original character’s trauma.Just when she thinks things are moving towards a brighter future, she unexpectedly finds herself in trouble…

A 30-year-old NEET is reincarnated into the body of an otaku that choked to death on instant noodles. As he comes to grips with his new life, he realizes that this world is subtly different from Earth. The denizens of this world are far better looking, and this new world also possesses futuristic technology as well as mysterious Yin Yang masters!

After reincarnating, he realized that he was endowed with a miraculous game-like system, which enables him to increase his own stats and transcend the limits of the human body. This system even has a game-breaking ability to save and load in real life!

In this new world that’s akin to a 2-D game, he just wants to enjoy life and head for a glorious future… However, he is quickly embroiled in a complex plot. Can he unlock his true potential and utilize his system to break the shackles that confine him and discover the truth about his previous body’s circumstances?

- Description from novelupdates

I became the childhood friend of the protagonist in a novel. The childhood friend who died from taking drugs.