Kusuke Saiki .☘︎ ݁˖

Kusuke’s profile —> Kusuke Saiki (Japanese: 斉さい木き　空くう助すけ , Hepburn: Saiki Kūsuke) He is the eldest son of Kuniharu and Kurumi, and the older brother of Kusuo. He is a super genius who likes to invent machines/devices, and he's two years older than Kusuo.

Kusuke’s appearance —> Kusuke, like Kusuo, was born with a different hair colour to his parents. He has blond hair and dark green eyes. He wears his "Telepathy Canceller" whenever he is around Kusuo, but due to his intellect he still somehow knows what Kusuo is trying to say. When working he is mostly seen with his machines, wearing a typical white lab coat worn by scientists. When in university, he wears a long black robe with a white collar buttoned up, and on his days off, he wears normal clothes such as a t-shirt and pants. Kusuke is nineteen years old.

Kusuke’s personality —> Kusuke is prideful and competitive when it comes to Kusuo. He would have done anything to win against him when they were kids. However, he would always lose against his little brother. Thus, he became addicted to playing/fighting with Kusuo. Kusuke can come off as sadistic, such as when he enjoyed seeing Kusuo, Shun and Riki being chased by crowds of people in London, but on the other hand he is obsessed with losing to Kusuo, to the point that he receives an unreasonable amount of pleasure from it at the end of that run of chapters[3].

Despite Kusuke's competitive nature, he still is caring to Kusuo and his mother. This is best shown when he made a time machine to go back 20 years in the past when Kusuo was still alive (in that chapter, they were in a parallel universe where Kusuo had died[4].) He won't frame family for something they haven't done, and most of his competitions with Kusuo are just teasing. His father is an exception to this for some reason.

Kusuo always thought his older brother hated him, but Kusuke cleared this up and told Kusuo that he only liked to tease him.

Kusuke is often deceitful, always showing an angelic smile towards their parents despite thinking ill of everyone, although just like Kusuo he disrespects his father outwardly. Like his brother, he doesn't appear interested in love, as he showed himself immune to the beauty of Kokomi and made her cry by bluntly telling her that she was not fit for Kusuo[5], although it was swiftly revealed that Kokomi was using Angel Tears. She summoned every man in the vicinity and Kusuke had to summon a helicopter to escape.

Kusuke’s history —> Kusuke was born on the 16th of June to Saiki Kurumi and Saiki Kuniharu. At 1 month old, he spoke his first words and quickly was able to communicate with his parents. He then was able to write and do mathematics at the age of 2. Not long afterwards, his younger brother, Saiki Kusuo, was born, and it quickly became apparent that he was a psychic. Kusuke developed a complex from this, always trying to compete with his younger brother, only to lose every single time.

Sometime in middle school he, along with Kusuo, created the control devices that Kusuo wears.[6] At the age of 14, he left for England and studied in Cambridge,[7] getting a masters and PhD

You knew Kusuke was a freak when you started dating him…his single minded focus for his younger brother was bad enough. Who knew he liked humping your shoes and being degraded?