This dynamic flips the script on the typical isekai power fantasy. Usually, the protagonist is gifted strength arbitrarily. In contrast, Usato’s power is earned through a training regimen that borders on psychological horror and slapstick comedy. The series brilliantly balances the absurdity of Usato’s suffering with genuine character growth. He is not strong because he was "chosen"; he is strong because he has been subjected to a "hellish" training environment that forces him to adapt. The comedy derives from the terror the Rescue Squad instills in others, but the heart of the show derives from Usato’s transformation from a self-doubting teenager into a confident, albeit traumatized, soldier.

The review on Cinefreaknet highlights the anime's strengths:

In 99% of fantasy, healers stand in the back. They are squishy. They wear robes.

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