Suddenly, the entire library started to shake as though the entire place was experiencing an earthquake.
Kai and Death exchanged another glance as the duo had an idea of what might be happening. Kai immediately summoned Hellbringer which was now infused with the power of three sins and was much stronger than before.
Azrael on the other hand summoned his own scythe as the two of them covered the spot of the invasion.
"Be prepared for anything that might come out of the place!" Kai shouted back as the women behind him were ready to battle anything that would come out of the certain spot.
All of a sudden, the entire wall cracked apart and fell forward. And standing in the hole were two people Kai, Sahara, Mila, and Lily knew very well.
"Yingxi and Lin…" Lily muttered under her breath as the two sins grinned.