Nirengeki is a chubby young man of average height, with short, ice-blue hair and a round face. He has large, wide eyes with small pupils, and is usually seen looking a little sheepish and apologetic; his eyebrows are almost always pointed upwards.
His hero costume consists of a navy blue, high-collared suit with a trim of thin pale lines around its collar and hem, and a similar pattern over his torso and shoulders, along with plain black pants and knee-high boots. A scouter-looking device is worn over his left eye, and he has a connected radar on the back of one of his gloved hands.
Nirengeki has a very humble attitude, as he will not take credit for something he does not feel he earned by his own strength. He's good friends with Tenya Iida and complimented Ashido on her punch afterwards, implying that he is mature and does not hold grudges.
Keen Intellect: Nirengeki has been shown to be able to analyse movements well as he was able to take out Mineta even with his sporadic movements. He was also able to immediately figure out that Mina had blocked his attack in the Joint Training arc, despite it not being visible to him, with only the use of his tracker.
Twin Impact (ツインインパクト Tsuin Inpakuto?): Nirengeki's Quirk allows him to strike his target and then make the point of contact receive a second impact. The second impact is several times stronger than the initial blow.
He has been shown to use this to jump higher, dash faster, and to finish Minoru in a single hit. Granted, Minoru may not have the greatest constitution, but to defeat anyone in a single hit is quite the feat.
He also uses his Quirk on objects to send them flying at opponents or to send possible weapons away.
The Ultra Analysis book mentions that he is excellent in one on one combat.
|Class 1-B's Conscience||5/6 A|
Impact Location Recording Devices: Nirengeki wears gloves and a scouter-like half-visor over his left eye. These devices allow him to keep track of the places where he landed a blow, allowing him to activate his Quirk at the most ideal times.