Door 7 was right behind Door 6, and Charles found it rather quickly.0

According to Tobba, Relic 319 was beyond Door 7. Charles slashed out at the door with his Dark Blade, but he was surprised to find that his efforts had only managed to create a long line on its surface.0

It seemed the wall was sturdier than he initially thought. Charles had blasted his way into Laboratory 3, but he figured that Door 7 would remain steadfast even if he were to use the same amount of explosives he had used at the time.0

Charles could feel his oxygen running out. He had to find a way to enter the door; otherwise, his efforts would all be for naught.0

A stifled gunshot echoed after Charles had aimed it at the door lock behind...0