Sen Kaibara

Sen Kaibara, also known as Spiral (スパイラル), is a student in Class 1-B at U.A. High School, training to become a Pro Hero.

Appearance
Sen is a young man with dark, shaggy hair, and dark eyes, which are rather thin and lazy-looking. He seems to have a modest athletic build, the same as most of his classmates, and a slight tan.

His hero costume appears to be a windbreaker with rings around the base of the neck and arms. Over this, he wears a large trench coat and gloves.

Personality
Sen is a stoic person who remains mostly calm and focused during many occasions. He is also shown to be more mature than Neito Monoma, telling the latter to quit provoking Katsuki Bakugo and focus on his goal during the Cavalry Battle.

Despite his serious demeanor, Sen can sometimes warm up during times whenever he drops his solemn behavior, such as when he shows enthusiasm in fighting against Mashirao Ojiro during the Joint Training Arc.

Volume 22 mentions that he's rather belligerent in terms of personality and often gets dragged along in his friends' antics. Sen is also described as an "ikeman", having the appearance of a good-looking man.

Quirk
Gyrate (旋回): Sen's Quirk allows him to rotate any part of his body like a drill. The effects of Gyrate turn Sen's limbs into something akin to large rotary tools. This enhances his hand-to-hand combat abilities significantly.

Equipment
Drill Gloves: Sen wears gloves with a spiral pattern on the fingers. These spirals act like a drill and cut into an enemy, thanks to his Gyrate quirk.

U.A. Sports Festival Arc

 * Team Bakugo vs. Team Monoma

Joint Training Arc

 * Joint Training Exercise/Round Three

Trivia

 * Sen likes cameras.
 * Sen's name contains the kanji for "revolve" (回), "field" (原) and "rotation" (旋).
 * Sen's second English voice actor, Matt Shipman, also voices Inasa Yoarashi.
 * Sen appears to be good friends with Kosei Tsuburaba, Hiryu Rin, and Yosetsu Awase.

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Сэн Каибара