Otherside Picnic (Manga) 13

The Otherside is still crawling with dangerous mysteries, but that also means it's filled with appeal for those drawn to investigating the unknown. Now that the Luna Urumi and mysterious Satsuki specter situations are settled, at least for the time being, Sorawo and Toriko are looking forward to a leisurely exploration of the Otherside at their own pace. Back in the real world, Sorawo happens to notice something strange about her neighbor's wrist. Then she hears a disturbing voice from the apartment next door...

Volume 13 of the Otherside Picnic manga series by Eita Mizuno.