B6 Comics In 300, he withdrew from his house and continued to make antiques (magic tools) which were all cheeto-class magic tools (2) / Usa-Hagegin Flex Comix
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Japanese title: B6コミック 300年引きこもり、作り続けてしまった骨董品(魔導具)が、軒並みチート級の魔導具だった件(2) / うさぺんぎん フレックスコミックス