Eldritch Realm

After that first day, it was normal schools days for Jake.

And after three months of work he soon reached B rank.

Inside the luxurious mansion of Jake, inside his room. 

Jake is now being surrounded by myriad of lights. 

The myriad of lights are bathing him as they engulfed him and washed his entire body, fortifying his body and cleansing his energy veins and expanding them as they strengthen them. 

Jake sitting in meditation, breath calmly in and out his breathe are clearly visible and murky, showing the removal of impurities.. 

Steam visibly rose from his body as his body experienced strengthening that come with each core advancement. 

And in his case it was dual core enhancement, after one core it was another core turn as his body was then bathed in pure white light symbolizing his White Heart Core. 

Jake this time gritted his teeth as White Heart core is one of the most destructive core if not for it being rank 1.