Mouhitori no majo (Media Works Bunko) [Light Novel]

[Machine Translation] This is the worst summer vacation I've ever had. Six people who died once but came back to life and obtained a mysterious nut that could grant them a wish. The one who died a second time and disappeared from this world. One that has taken the form of someone else. The one who is seeking revenge against the person who killed him or her. The causes and effects of each wish are intertwined and take unexpected turns. And what does the witch, who has lived through the ages and witnessed the fate of her children, wish for?

「今年は最悪の夏休みだ。わたしはこの夏に、やり残していることがある」一度死んでも生き返ることができ、その際にひとつの願いを叶えられるという不思議な木の実を手に入れた六人。二度目の死を迎えてこの世から消えていなくなったもの。別の誰かに成り代わったもの。自分を殺した相手への復讐心を募らせるもの。各々の願いがもたらした因果は絡み合い、予想だにしない展開を迎える。そして永き時を生き続け、子供らの行く末を見届けた魔女は、何を願う。