Itsuka Kendo

Itsuka is a spirited girl who is thoughtful of others.[2] She does not hesitate to criticize even her classmates if she feels what they are doing is not correct, like whenever she karate chops Neito Monoma on the back of his neck to prevent him from antagonizing Class 1-A[3] and the rest of Class 1-B. Itsuka is willing to pass on beneficial opportunities if she feels others deserve better. This consideration was shown when Itsuka let Tetsutetsu Tetsutetsu and Ibara Shiozaki participate in the tournament event of the U.A. Sports Festival in place of her team.[4] Tetsutetsu has stated that because of Itsuka's cheerful personality, she can bring all of Class 1-B together, thus making her the "big sister" of Class 1-B.[5]

Itsuka is additionally friendly to people outside her class and seems to hold no signs of ill-will towards Class 1-A, making her a minority of the 1-B students. She has displayed sympathy towards others, even if she is not particularly close to them. She showed concern for Izuku Midoriya and Tenya Ida after hearing about their run-in with Stain and helped Class 1-A by telling them what was supposed to be on the First Term Final Exam's practical portion despite it being somewhat against the rules.[6]

In combat, Itsuka is very analytical. She can understand Mustard's Quirk (comparing the motion of his gas to that of a tornado) and use that logic to determine the user's location. Itsuka can also use her Quirk to dispel the gas Mustard emits, allowing her and Tetsutetsu to fight without gas masks