On the last day of the audience, Rimuru meets Momiji, the representative of the Tengu clan. Their meeting comes after Rimuru had sent Benimaru to the Tengu village to request their permission to build a tunnel through the Kusha Mountains.

Although Luminus and Hinata are deeply important to each other, they ended up in a fierce fight. What happened behind the scenes of that tangled mess? Luminus, the one god of Lubelius and a member of Octagram, tells the story from her point of view.