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"To hurry us up?" Asked the three rulers.
"Yeah, the Demon King was cooperating with the Genie, and also the invaders from another worlds such as the Necrotic Plane Ruler and the Maxima Universe Ruler." I said. "It is obvious he knows about us; he wants us all dead, and also knows that we need to defeat him so we can get the last Cosmic Shards."
"Yeah, partially, this is quite all my fault. These shards belong to my soul originally, they shattered out of it when I was younger." Frank sighed. "It is thanks to my Shards that all of your enemies have been able to manifest themselves from other worlds and also, for the enemies here to become much stronger…"
"Don't blame yourself for this, Frank." Ervas said. "This is not your fault, that was beyond your own control when it happened. But I am glad you've managed to gather most of them by now."
Check "The Protagonist's Sister Is Actually the Strongest"!