Rosti Nauman’s personality is defined primarily by his intense and singular focus on Will Serfort. Below are the key aspects of his personality: Devotion to Will: Rosti is deeply and "madly" in love with Will. His primary motivation and interest is "everything about Will Serfort," and he dedicates his time and genius-level talents in magic engineering to creating items specifically for Will’s benefit. Protective and Clingy: He is highly protective of Will. He has been known to actively block or interfere with other characters, such as Colette, when they attempt to get close to Will. This behavior is seen by some characters as potentially dangerous or possessive. Supportive Peer: Unlike many other students at the Rigarden Magical Academy, Rosti did not look down on Will for his lack of magical aptitude. He consistently shows support for Will, standing up for him when others bully him. Soft-Spoken and Gentle: He typically adopts a soft, unassuming, and polite tone, which makes him appear harmless and approachable to those around him. Devoted and Expressive regarding Will: When the topic involves Will Serfort, his speech pattern shifts to become overtly affectionate and intense. He speaks about Will with a level of openness and passion that often surprises or unsettles others. Calculated Ambiguity: Because he is acting as a facade for a much more powerful entity, his speech is often carefully layered. He uses his conversational style to blend in as a typical, supportive classmate while masking the true, more possessive nature of his intent. Defensive Tone: When confronted by others—particularly those who want to get close to Will—his tone can become pointed, sharp, or dismissive to discourage their interference.