Kazuyoshi "Switch" Usui

Kazuyoshi "Switch" Usui is one of the main characters from the Sket Dance anime and manga.

Switch is the brains of the Sket Dan. As a result of the events that happened in his life, he opts to speak through a voice synthesizer on his computer.

In the Heroes Coalition fics, Switch is a student at the Vanguard Academy.

Appearance
Prior to Masafumi's death, Switch has slightly longer and messier hairstyle, and he did not wear glasses. Aside from his uniform, his home clothes are less casual than his present attire.

He is noted to be very handsome. Along with his odd manner of speaking (through the voice synthesis program on his laptop), Switch is very popular for being both mysterious and good looking. His current appearance is intended to copy that of his deceased brother. For his outfit, he usually wears a green vest over his uniform, and his glasses have plastic frames.

Personality
In a past, he was quite laid back and devoted to protecting Sawa and his younger brother. He's calm and a perfect figure of an older brother for Masafumi. Switch began to envy Masafumi as he created something by himself and impressed Sawa. After the death of his brother, he tried to come to school but he felt hurt, so his homeroom teacher told him to not come to school when he doesn't feel strong enough.

After recovered from shut-in problems due to his dark past and prior graduating high school, he is calm, reserved, and stoic, rarely showing any emotion. He has a deadpan sense of humor and seems to enjoy teasing others. Because he always communicates through speech synthesis software and has a tendency to joke with a straight face, it is difficult to tell what he is really thinking. While he usually "speaks" without much emotion, he would sometimes purposely raise his "voice" to abnormally high levels for comic relief. He often becomes very passionate about anime and often provides a very detailed and hilariously in depth commentary on the various animes featured in the series.

Abilities

 * Electronic Master: With his laptop, he is shown to do multiple things in an easy way and in swift motion like the following:
 * Tone Changer: Switch is shown to be able to change the tone of the voice in his speech synthesis software into different tones he likes. There are multiple times he uses this, and he sometimes uses it to his advantage and uses it for mimicry.
 * Database of Information: He is known to have lots of information throughout the whole school and those who are in it. He knows exactly what Hime’s full name, height and weight to her frustration. He also has lots of information of anime and manga’s, though he denies of being an ‘otaku’.
 * Skilled Inventor: He has a large talent for ‘crazy’ inventions, though his obsession for this has rooted from the death of his younger brother, though even before, he still knows how to create inventions.

Trivia

 * In the original oneshot, his first name was written whereas it was changed for the serialization. Both are read as "Kazuyoshi," however.
 * Shinohara stated that originally, Switch was named after the musician Kazuyoshi Nakamura. After the change in kanji, he then made reference to also liking the musician Kazuyoshi Saito.
 * In the manga, Switch says his favorite Arrancar from the manga Bleach is Aaroniero Arruruerie. In the anime, this line is changed to his favorite Visored being Kensei Muguruma. This is likely due to the fact that his voice actor, Tomokazu Sugita, also voices Kensei.
 * Gintoki and Kagura were shocked when they learned that Switch's speech synthesis software had the same voice as Gintoki (Sugita).
 * Switch's first encounter with Bossun was an accidental collision in the school hallway, prior to the start of his backstory. Additionally, his backstory takes place during the spring and summer of the first year of high school.
 * Switch's laptop voice is a mixture of his deceased brother's and his voice.