Bocchi The Rock

Lycoris Recoil

Honkai Impact 3rd

Mondaiji-tachi (Problem Children are Coming from Another World, Aren't They?)"

3 years before the story takes place.

Sakamaki Izayoi is a boy who wants to experience war and learn to control his emotions through it, given his unimaginable power. He also wants to hide that power so he can live a normal life without being bothered.

His adoptive mother indulged her troublesome son by introducing him to the strongest special forces unit in America, on the condition that he complete his goal within a year before returning to Japan to live a normal high school life and establish an orphanage.

After almost a year in the world's strongest special forces unit, Dragon, he only took a week to rise to the rank of captain. During a crucial mission, the entire Dragon unit fell into a trap set by the world's most powerful Super family, and many members were murdered, causing the organization to disband.

Izayoi didn't participate in that war when it was time for him to return to Japan. He also discovered that his adoptive mother had an incurable disease, so he returned to Japan to fulfill her dying wish: to see him attend high school and make friends.

After receiving news that most of his comrades had perished, he became enraged and wanted revenge against the Super clan. However, his adoptive mother stopped him, wanting him to thoroughly investigate the story before doing so, and if possible, she wanted him to forget about it and live a normal life.

In the two years before the events of the story, Izayoi attended high school and made friends with people he could trust. At the same time, he continued to travel the world hoping to find a way to save his adoptive mother. During this time, he also dealt with many villains and organizations of all sizes around the world, earning him a place in the Top 10 strongest assassins in the world. Because he always kept his face hidden, he was known as End.

After his adoptive mother passed away, despite his best efforts, Izayoi discovered that one of his female friends couldn't live much longer without a complete heart. The only way to save her was to strengthen her body and spirit, then perform a gene transplant. Just then, he received a call from his former commander in America, asking him to agree to a mission to protect a young lady from the prestigious Kaslana family. Izayoi agreed, as this would both train his friend and give him a chance to take revenge on the most powerful family in the world ... the Super Family, the strongest in America.

This is the story of Izayoi and his group of friends protecting a wealthy young lady from dangerous forces, while his main goal is to save one of the female protagonists from the enormous Deathflag hanging over their heads.