Longevity Chronicles - Chapter 43 - 41 Tao Qian Slays the Dragon, 9 True Spirit Sounds

Kain may not have been very popular, and his life felt dull, but everything changed instantly. When he wasn't at work, he immersed himself in reading and watching anime. Then, the unexpected happened.He woke up in a new world, confronted by a blue interface hovering before him. Join the journey to see how Kain will adapt and thrive in this extraordinary reality.-No Harem- Noobie Writer.

Damien was reincarnated as the villain in a shelved novel. He find himself on a wedding scene where the protagonist was destined to rob the marriage.He smirked while looking at the proud protagonist and arrogant heroine.Aren't you proud and arrogant? Let you know the consequences of offending the Villain!Destroy the background behind you and capture your family!Don't you love her? Aren't you the son of fortune? Kneel Down!!Now the choice is yours! Do you choose your family or the heroine?“Hehehe didn't the heavenly dao want to suppress and kill me? Let's see how I will play with your chosen 'son and daughters' to death! When the auspicious time will come, I will kill you too!!!”

This crossing is so strange, death crossing, game crossing, etc. are probably barely acceptable, but why can you cross even if the fish tank is broken?

and actually passed through the magic tree in “OVERLORD” that is said to be able to destroy the world?

No! It is sad enough to regenerate into a plant. The protagonist, Ainz Ur Gong, the undead king, has also accepted the adventurer’s guild mission and wants to kill me!

I want to change my destiny! Live! I want to-surrender!

Ainz: Since he has accepted the job commission from the Adventurer’s Guild, deliberate failure is detrimental to the prestige of Ainz Ul Christine (the “surrender” button has been deducted)

actually died as soon as he crossed, but there is still a chance to return~ from the beginning of the magic tree to this world.

I must change my destiny this time! Live!

- Description from novelbuddy

A series of short stories in the world of Toaru Majutsu no Index organized into chapters featuring Kanzaki Kaori as the protagonist, going around the world and space doing missions for the Church of Necessary Evil, however, there is more than meets the eye as each incident is connected.

One chapter was bundled with each limited edition release of the Toaru Kagaku no Railgun anime DVD and BDs, with all of them together being equivalent to a single normal Toaru Majutsu no Index volume