Koikon Izumi

Koikon Izumi (小遺恨 泉, Koikon Izumi) is one of the 5 main characters of . He received the student council president title after winning it in a raffle, but was also forced to become a member (more specifically, a leader) of a gang of phantom thieves known as the Phantom Creathieves.

His favourite colour is green as it represents health.

Background
Izumi is a sophomore of Sentama Gakuen. He's generally not interested in any clubs and thus goes home right after classes end, as joining clubs is not necessary. His hobbies often revolve around watching anime, but he goes out every day for evening walks. He can't stay inside of his apartment for too long because it can get muggy and can make him nauseous due to how warm his apartment can become.

Despite knowing theft is against the law, he still has an affinity to phantom thieves. He's never dreamed of becoming one, but finds himself having dreams about it, even being a leader of random heists that happen in them. He has a green domino mask that he purchased during the school festival, but only wears it in private as he doesn't want to be made an incoherent fool out of.

His company consists of some male friends (which aren't as important to the story, hence why they don't have any names attached to them; however, it is well-known that Izumi has friends). While in the first year of high school, he fell in love with Kano but has withdrawn from confessing to her multiple times out of fear that he might be rejected solely for his height. Besides the latter, he's also inexperienced at talking with the opposite sex.

In second grade, things went south when Izumi was about to receive his student council president title. He passed out because of oxygen shortage. The next thing he knew, he was held hostage by the Phantom Creathieves, a gang of phantom thieves consisting of four members, each with their unique abilities. Even though he was persuaded into becoming their leader alongside being the council president, he accepted their invitation and has told them about his admiration towards them.

As the leader of the Phantom Creathieves, though he doesn't possess any special abilities, he allows himself to grow alongside his team and accepts any criticism that gets thrown his way. Even though, in general, he struggles with some classes in school (like Biology), he doesn't lack intelligence and is, in fact, just as intelligent as the rest of the Creathieves. Even Inspector Fujiwara, who actively seeks to eliminate him, is impressed by his abilities despite not being as special as his peers. She admits that sometimes, him being adorable is one of the many reasons why she fails to capture him.

Appearance
As a Phantom Creathief, Izumi is the only one who wears trousers instead of a skirt. Both his shirt and trousers are grey. He wears regular brown shoes. His collar is green and matches his green domino mask and grey hat, including a green pattern with a bowtie on the bottom of the hat. He also has green hair and green eyes.

Because he takes baths every day, his hair is very smooth. Before school, he prefers to add some gel to shape his hair up.

He also wears the Sentama Academy uniform for boys which consists of a black blazer, white long-sleeved shirt, frills, grey shorts and black shoes.

Aliases

 * Izumi-kun [泉くん] (Shio, Hiyori)
 * Izumin [イズミン] (Kano, Asumi)
 * Koikon-san [小遺恨さん] (Inspector Fujiwara)