Toaru Majutsu no Index: New Testament - Volume 16, Chapter 3: Mutual Request for Assistance between Enemies - Double_Enemy.

This book was inspired by My Hero Academia: Adaptation“Who decided being quirkless means you can't be a hero? Those are just rules made by people who never tried to break them.” When a battle-hardened warrior dies in one world and awakens in the body of a quirkless boy in another, the rules of heroism are about to change.Armed with combat experience from a darker realm and an iron will forged in warfare, he sets his sights on U.A. High School - the pinnacle of hero education. But in a society where superpowers are everything, his approach to strength might just shatter the entire system.Behind a gentle smile lies the mind of a warrior. As he builds his power through unconventional means, one thing becomes clear: rules were meant to be broken, and this world's definition of “hero” is about to be rewritten.Sometimes the strongest ability isn't a quirk at all. It's the will to change everything.

As the newly appointed 12th Fatui Harbringer of Snezhnaya, with the nickname of the [Ausbilder], or The [Instructor], Bai Luo feels a little uneasy.This is because the Cryo Archon has given him a task: to go to Inazuma as the Snezhnaya Envoy.As a world traveler, he knows full well the consequences of going to Inazuma—he will definitely be targeted by Raiden Shogun.However, if he doesn't go, the Cryo Archon will also target him.So he chooses to employ a traditional technique that everyone tend to use from time to time in his previous world.Slacking off.

As a virtuous wife, does it include tolerating his cousin, enduring his concubines, bearing his mother?

If you will not let me live freely, why would I let you live in satisfaction?

Did fate let women time-travel so she could learn the three morals and four virtues?

Rather than act like a coward and live, it would be better to live in satisfaction and die.

- Description from Novelupdates

What would you do if your entire world were turned on its head? A Primordial System buzzing in everyone’s heads, displaying strange screens and other displays in their visions. Being thrown into a tutorial before entering your first System Event broadcast across the universe. Returning back to your home after the System Event to realize that it’s been filled with Gates leading to monster-filled domains, a good number of which have already broken and released their monsters into the world. And learning that the abilities every human being has – abilities that have led to the current structure of society – are nothing but the root of their Skill Trees. The very first skill in their Skill Tree out of many. Well, Ashley doesn’t know. She doesn’t remember anything other than some basic common knowledge from before waking up at the start of the tutorial with amnesia. So why should this change anything for her? Other than her finding out about the blood bestowed upon her by a certain primordial and her own Skill Tree. One with just a single skill. A skill to unlock the skill trees of those she kills. To assimilate. What to expect: Skill Trees, LitRPG Apocalypse, Skill Tree Assimilator(the ability to take the skill trees of those the MC kills that she can unlock through Skill Points without getting the skills right away), Livestreamed Dungeons, Livestreamed Public Battles and Events, Chaos Magic, Varied Magic due to Skill Tree Assimilator, and the MC does not start off strong in the start and only grows strong as she assimilates more skills from those she kills, the MC starts out without any memories and few emotions and slowly gains them throughout the series. What not to expect: I do not write romance(for the main protagonist), there will be no harem, there will be no reverse harem, and do not expect a really strong MC at the start of the story as she has to grow into that role.