Samidare Amaashi

is a serial killer known as the.

Background
Samidare worked as a shinobi for many years, always prioritising his missions over his family. When he heard news that his sister Mikazuki died in a Kaneki Corporation chemical plant accident, he investigated, finding her involvement in a dangerous project suspicious. He tracked down her superiors and discovered they pushed the project forward despite the danger associated with it to remain competitive. Because of their excuses and disparaging of those who died in the accident, he began killing them.

Abilities
Samidare is able to use Water Release, turning raindrops into ultra-thin needles.

New Era
While attacking his third victim, Samidare hesitated, and was injured in return. Mikazuki found him and brought Mitsuki to him. Mitsuki took Samidare to his apartment and tended his injury. He attempted to kidnap the Kaneki Corporation president, but was stopped by Team 7. He later managed to do it by disguising himself as a police officer and attacking outside his usual pattern of acting during rain. Mitsuki exposed him as the killer, and defeated him. Samidare used his jutsu on himself and was rendered comatose. Mitsuki visited him in the hospital.

Trivia

 * Samidare translates as "early summer rain", which references his infamous moniker.