Two young children stand before the veil of life and death, and a many-armed terror opens a breach, stretches wide its many-fanged maw...And invites them in for a sleepover! And that's not all the fun the kids have planned for Dara-san! There's gonna be summer festivals, toy model making, and more! Somehow, an unknowable horror from beyond the black woods of untold history has ended up as the straight man in this comedy!