Chaos [Haikyuu x BSD x Assassination Classroom]

Dazai Osamu's younger sister, Dazai Yuko, along with newbie Atsushi are entering High school to protect an ability user that the Port Mafia is after. At her last school, she had to kill her teacher, so she is expecting High School to be even more Chaotic (especially with her suicide attempts). What happens when she enters Karasuno High School and is greeted by a volleyball to the face?

The Karasuno Boy's Volleyball team is practicing when Kageyama's serve goes wrong. It flies out and hits a girl clad with bandages in the face. The team runs out and asks if she is okay. The response they get? "You almost killed me!" When they were about to apologize again? "Do it Again! What a creative suicide device! Death by Volleyball!" The Karasuno Boy's Volleyball team can't help but wonder what they got themselves into.

Class 3-E has stayed together since Koro-Sensei's death but their suicidal maniac has gone to a school in Miyagi. For revenge, the class decides to Assassinate said girl (not really).

Can Dazai Yuko survive the Volleyball team's antics, multiple assassination attempts, and her and her brother's old partner out to get her, or will she find the perfect suicide method??