The chapter leans heavily into the contrast between Hiyori’s "scary" reputation at school and her actual helpless, fragile nature.

: The core of the series remains the contrast between Hiyori’s public persona as "Kowakowa Sensei" (Scary Teacher) and her private, vulnerable "Yowayowa" (Weak) self. Growing Intimacy

If you enjoy the "Yowa Yowa" (weak but pretending to be strong) trope, this series is a top-tier example of the genre. If you are reading the raw to practice Japanese, the kanji usage is generally standard for a Shonen demographic, though the fantasy terms (spells, titles) can be tricky.