As soon as I burned the contract book, which had become an outer world object, a wave of exhaustion suddenly swept over me.

It felt as if a giant wave had crashed over me, and the Blue Girl’s body quickly succumbed to intense fatigue.

My stomach was desperately empty, my eyelids felt as though they were glued together from sleepiness, and it felt like I could die from the weight of it all.

"Ugh..."

A groan slipped from my lips without my control.

It felt as though I had the worst body aches, spreading through my muscles, making it hard …