Sabikui Bisco Vol. 3

In Vol. 3, in order to hurry to their next destination, Bisco and Milo help restore an abandoned underground subway line with help from a jellyfish girl. But a giant octopus creature is wandering around the subway looking for prey. Bisco is caught in the octopus’ tentacles and the situation becomes desperate, which leads to Milo to awaken his talent with a bow.
Notice: This book is written in Japanese.