"This... this can't be. Could it be the same monster that had been left dormant in the abandoned church for decades...?"

"It is the magic sealing stone containing the undead monster, Harlequin Queen, Professor Mamari."

"Incredible... Just as I thought, my eyes didn’t deceive me...!"

‘Let me out immediately...! What do you plan to do with me, sealing me in here like this...!’

Even after we returned from the abandoned church to Professor Mamari's villa, the Harlequin Queen wouldn’t stop her noisy complaints.

Trapped in the sealing stone, she seemed no more dangerous than an ordinary nun’s spirit. However, despite …