Chainsaw Man. Bird and War

Asa Mitaka — a lonely and silent schoolgirl who struggles to communicate with her classmates. Her life is unremarkable. But Asa is unaware that she has an enemy wishing for her death... One night, Asa comes face to face with her foe — and before she can even react, he kills her. However, just a moment before her death, a mysterious creature appears before Asa, offering her a deal. All she needs to do to live on is to allow a stranger to inhabit her body. Asa couldn't have imagined that by agreeing, she would irrevocably bind her life to a powerful demon whose sole purpose is to defeat the Chainsaw Man... The book includes chapters 98–103.