Go Nen Rei Gumi Kowai Mono Gakari 11 (Kadokawa Tsubasa Bunko)

[Machine Translation] If the Daidara loneliness sleeping right under the school is revived, the Reigumi, Asahi Elementary School, N City, and even Japan itself will be ruined! In order to seal it before that happens, the past Kowai-mono-Kakusha (Kano, Haru, Yuka, Reiko, Yuka, and Akari) and members of the Reigumi jumped into the black hole. Thanks to the light from the mirror outside the clouds, the nine were able to meet up with each other and finally confront Daimara Loneliness. Gathering their courage and wisdom, they will create a miracle. Don't worry, because that's the "Kowai Mono Kakari"! From elementary school intermediate level.

学校の真下に眠るだいだらぼっちが復活すれば、霊組が、あさひ小が、N市が、日本そのものまでメチャクチャになっちゃう!そうなる前に封印しようと、黒い穴に飛びこんだ佳乃、春、友花、麗子、優香、亜香里の歴代こわいもの係と霊組メンバーたち。雲外鏡の光のおかげで合流できた9人は、とうとうだいだらぼっちと対決する。勇気と知恵を寄せあつめ、奇跡を起こそう。大丈夫、だってそれが「こわいもの係」だから!小学中級から。