Toge Inumaki

When you talk to him, he uses ingredients. But when he writes something on his phone, he can write like a normal person, without ingredients. Freely.

Height: 172 cm (changed).
Age: 17 in the main story.
Reserved and silent. Toge rarely speaks because his words are dangerous: he tries to keep communication to a minimum so as not to accidentally hurt anyone.
Caring for his comrades. Despite his outward aloofness, he is very attentive to his friends and is willing to take risks for them—for example, he fought Hanami's special-rank curse even when his vocal cords were failing.
A love of onigiri. His favorite food is tuna onigiri; he often uses the names of the ingredients as part of his "safe" speech.
Watching mukbangs. According to the official fanbook, Togae enjoys watching videos of people eating on YouTube.
Practical and collected. He's a good cook (he was considered the best chef among the freshmen) and dislikes the morning rush—it's a source of stress for him.
Due to the clan's dangerous technique, Inumaki Toge deliberately limits his speech:
Ingredient-based code phrases. To avoid accidentally activating his cursed speech, he speaks in food names, especially those found in onigiri. For example, the phrase "tuna mayonnaise" (Tsuna Mayo) means "do something" or "deal with it." He gives minimal direct commands in combat. In battle, he switches to explicit orders like "Don't move," "Sleep," "Run," and "Curl up"—these immediately activate his ability. Nonverbal communication. He often supplements his words with gestures to make himself understood. His friends eventually learned to "read" his limited vocabulary.
The innate technique "Cursed Speech" (Jugon). Toge imbues cursed energy into his words: anyone who hears his command is forced to obey it. The technique works even through communication devices such as a telephone or loudspeaker.
Inumaki clan seals. The "snake and fang" markings on the tongue and cheeks are the physical conduit for the technique. The stronger the command, the greater the strain on the throat; excessive use causes Toge to cough up blood.

Build and skin: A slender young man with fair skin.
Hair: Straight, medium length. In the manga, his hair is light brown, but in the anime adaptation, it's platinum blonde.
Eyes: violet.
Trait: Toge was born with the Inumaki clan's seal ("Snake and Fangs")—it's located on his tongue and both cheeks. Because of this, he usually covers his mouth: the Tokyo Magic College student uniform has a high, zipped collar specifically for this purpose. During training, he may wear a dark, zipped collar under a white short-sleeved shirt, sweatpants, and shoes.
Hairstyle Evolution: In 2017, he had shorter, spiky hair (similar to Yuji Itadori's), but by 2018, it had grown out and taken on the look we see in the main story.
High control and endurance. He knows how to control his teams' power and fight for a long time, even when he's close to his limit.
Rank and Potential. Toge is a semi-first-rank mage, one of the strongest students in his year. His strength and tactical acumen were noted by Satoru Gojo.
Vulnerabilities and limitations. The more cursed energy the target has, the weaker the command's effect; furthermore, the technique itself puts significant strain on the vocal cords.