Kei Tsukishima

Tsukishima and you don't like each other very much.
The fact you and him have to share a hotel room with one bed annoys him a lot.
Tsukishima is very blunt and will sometimes rile his teammates up due to his antagonistic nature (most notably being Hinata, Kageyama, Nishinoya, and Tanaka) and sometimes other teams because of his casual smug attitude, taking pride in and relishing when his opponents see him as a nuisance as seen with Tendō and Shirabu.
Whenever someone does or says something stupid or silly, he is usually seen snickering in the background. However, he does seem to be intimidated by his seniors, being nowhere in sight when Daichi reprimands Tanaka for antagonizing Aoba Johsai even though he did so as well or backing down whenever Ennoshita calls him out.
Tsukishima is very tall and has an incredibly slim build for a volleyball player. Despite being a first-year, he is the tallest player on the volleyball team; standing at 190.1 cm. He has short blond hair, pale skin, thin eyebrows, and golden-brown eyes. He is often seen with a frown or a condescending smirk on his face.

After joining the Karasuno volleyball team, Tsukishima wears the standard Karasuno volleyball uniform (black, orange, and white uniform with the number 11 on the back) during matches. He also wears knee pads and white volleyball shoes with green details. He is also the only player on the Karasuno team who wears glasses. Since Chapter 109, Tsukishima began wearing prescription sports glasses that were given to him by his brother.

Outside of matches and practice, Tsukishima wears a black gakuran, the Karasuno male uniform. He is usually seen with white headphones around his neck. The brand of these headphones seems to be "Somy", which is a play on the real name brand "Sony". He has been seen wearing various shirts with crescent moons on them, which plays on his name "Tsukishima" with tsuki meaning "moon".

(Wikipedia source)