PREVIEW
... for school alone.
However.
Perhaps to protect Li Yuan, the Left Hall Master ordered two spider combat robots to follow him all the way, only leaving his side as he was about to enter the school.
As for the school's interior? In large cities nowadays, places like schools, research institutes, government buildings, and mega-malls are all stationed with combat robots.
There are also numerous combat robots patrolling along the streets and through the residential area ...
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