Nahuse 
Rebuild World: Volume 6 Part 1 [EPUB ebook] 

With the gang war behind him and touting a brand-new set of gear (again), Akira is ready to dive back into the ruins for relics once more! In the depths of Kuzusuhara, the enigmatic Alpha guides him to an Old World city. There he encounters Tsubaki—the AI managing the area—who seems to hold a grudge against Alpha! Meanwhile, Sheryl’s relic shop finally opens for business. All is going well for Akira, but the city seems to have other plans for him. Many lives hang in the balance as conspiracies unfold and the Old and New Worlds clash!