"You might not know when you're sober, but don't underestimate a drunken demon." To get Hinata, who collapsed from a fever, checked out, Naori and Mikage visit the peculiar doctor specializing in oddities, Utsugi. However, this doctor has an extremely strong personality...!? Under Utsugi's orders to gather medicinal herbs for Hinata, Naori and Mikage confront a powerful oddity, but―― As the ties between demons and humans block their path, can Naori save Hinata? The bonds are put to the test in Volume 5!