"I really can't figure it out," Davey sighed, looking at the golden, antique key in his hand. He was well aware that none of the items bestowed upon him by Goddess Freyja were ordinary: the embers that could revive the dead, the complete synchronization of his soul and body that defied all rules, and the gemstone that allowed him to unleash his full power and potential in a brief moment. And now, a key.

The problem was that, unlike before, this key had been hastily given to Davey as Goddess Freyja's influence rapidly waned. It also meant that if she delayed any further, she wouldn't be able to hand it over to him. It left him with mixed feelings. He certainly felt a sense of urgency. But what exactly did she want him to do with it?

"Even with the power of the abyss, all I can determine is that it's a key to a door. But I don't know which door it's meant for..."

"Is its power less useful than you thought?"

"Urgh..." Perserque, seemingly at a loss for words, let out a groan as she playfully tugged on his...