The two people were Molly's parents and Arata was worried thinking that he had killed them. Molly was so excited she stopped crying. They all sat down when everyone realized that Arata left awhile ago. Arata used the dash skill continuously to move so fast the skill evolved to flash step ((FS)) this means the skill now allows him to move much faster. Swift ad an arrow Arata was smiling like crazy. There were no trees for miles so he ran on the flat land, he noticed that he's been accelerating for awhile now without stopping so he decided to push his speed to the limit and began running so fast everything became blurred. He reached the maximum speed at that point he learned a new skill but , something was off about this skill. While running he checked his details and saw that the skill isn't normal it's a noble skill since he knew nothing about that he left it and continued to stop running. Arata stopped and was amazed by the view of a once well known city turned to a wasteland with ruins.
This was what made Arata believe that the world has changed. Arata walked with cautious as this place was new, he saw some humanoids which immediately attacked him. The ruins gave him a huge advantage as he can use those buildings for footing * off with their heads * said Arata *stooop * shouted a group of unknown people but Arata didn't care so he dashed around.