Ashiya's friends Saga and Fushimi invite Ashiy and Abeno on the photography club's overnight trip.
Since the incident with the Executive, Ashiya has been able to detect yokai at a distance.
However, he still hasn't mastered that skill, so Abeno uses the overnight trip to develop Ashiya's detection ability.
Yahiko is invited along to help, but a prank he pulls on Ashiya draws out another one of his latent powers--!
Yesterday, while I was using my 
influence, I was acting unconsciously,
Als ich gestern meinen Einfluss ausgeübt hatte,
habe ich unterbewusst gehandelt.
Quand cette Emprise
s’est manifestée, hier,
Ontem, enquanto usava minha influência,
eu estava agindo inconscientemente,