At first we confirm a physical law at the very beginning if we go to parallel universe
Oretachi wa Isekai ni Ittara Mazu Massaki ni Butsuri Housoku wo Kakunin suru
俺たちは異世界に行ったらまず真っ先に物理法則を確認する
Oretachi wa Isekai ni Ittara Mazu Massaki ni Butsuri Housoku wo Kakunin suru
俺たちは異世界に行ったらまず真っ先に物理法則を確認する
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