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thank u for uploading!!!!!
also, i looked into "physics" as a jp gaming term and this came up:
https://hedgehog.ryukyu/moba%E7%94%A8%E8%AA%9E%E4%B8%80%E8%A6%A7/
it might just be referring to armor class as in quality of armor. i dont have the raws tho so i cant be sure on grammar
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whenever i finish a story like this i just get fascinated w how ppl are able to make amazing, long-form stories with this many twists and turns while all feeling like it belongs in that world they created, and that it couldn't be any other way...... the mangaka is a beast for making something so awesome
finally got caught up and it's better than i remember. they're definitely endgame