I Will Survive Till The End: Blood Extermination Academy - Chapter 25: Regret

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

When Li Shen’s second personality acts out, her consciousness is sent to a strange place called Split Zone No.13. She is then informed that she can only return home after unraveling the truth.

Li Pu, who has the blood of a summoned beast, originally just wanted to lie down honestly, but found that his talent as a summoner seemed a bit unusual…

- Description from novelbuddy

Wraiths are genetically altered people who possess special abilities. However, ability doesn't always mean power: more often than not, it just makes you a target. This is especially true for Matthew, who might just be one of the most powerful wraiths in the world - and therefore, has to hide his power and use cunning in order to survive.And then there is that girl who wants him to join her rock band...