(W/A/CA) Salt Seno After his professor is injured, rookie linguist Hakaba is entrusted with his work, a research trip to study the language of monsters. Travelling together with his guide Susuki, he dives into the complex world of interspecies communication! For readers ages 13 and up.

(W) Salt Seno Hakaba's small party's travels continue, and the next stop on their journey is sacred hot spring site! Their excitement ebbs, however, when they arrive to find it in dire need of repair?

(W/A) Salt Seno As spring finally arrives, Hakaba's party finally finishes their journey to the coast. As they begin their research on the new region, Hakaba is swept into an underwater cave by its residents-who are indistinguishable from fish! Will Hakaba be able to figure out how to communicate with the inhabitants and escape from the cave before it's too late?