ぼくらの強い味方ガードレールさんですからね！
壊れてたら報告しなきゃいけないなーと思ってましたが、本気で無傷だったので驚きました。

Because it's our powerful ally, Guardrail-san! I thought we'd have to report the matter if she'd damaged it, but were stunned to find it was totally unscathed.