Tadakuni

Tadakuni is the ‘straight man’ of the main trio, and is classmates with the other two at Sanada North High. They usually hang out at his house after school. He also works part-time twice a week at a pizza restaurant, and has a violent younger sister whom he hardly talks to. In the past, he was a member of the group acting as Rubber Shooter.

Of the main three, he appears the least in the whole series due to his "ordinary" appearance and personality.

Appearance
Tadakuni is a slim teenager of around average height. He has black eyes and relatively short black hair in a bowl cut. He is usually seen in the North High school uniform. Unlike his friends, he sometimes wears casual clothes outside school. When working part-time, he wears the standard Pizza-Le uniform.

Personality
Tadakuni often acts as the ‘sane voice’ of the group. Despite his protests and disapproval, though, he usually ends up getting involved in Hidenori's and Yoshitake's wild ideas. He’s creative in his own way, being good at making up stories that notably excite the other two (and his sister).

Since he doesn’t have the loud, quirky personalities of his friends, he easily gets side-lined when they take centre stage. This is a running joke in the series, since he was introduced as the main protagonist but ends up appearing far less than quite a few characters.

For the most part, Tadakuni seems to be quite normal, although he does have a knack for reading a situation even if he’s not actively part of it (most notably in his dealings with Yassan and the overly self-conscious girl). When it comes to his relationships with his friends, he tends to overthink about their view of him and sometimes worry that they aren't close enough.

Role-playing Avatars
More details: Chapter 6, Chapter 37, Chapter 38

"Swordsman Tadakuni"
"Swordsman Tadakuni" is, according to Yoshitake, a warrior on a journey to become the world's greatest swordsman (despite Tadakuni showing no interest). He comes off as inexperienced and keeps protesting about the absurdities in the trio's RPG-world and the storyline. Eventually, he tags behind Jack in his quest to defeat the demon lords.

White Knight
In another adventure, Tadakuni is part of the Captain's crew as a rookie training to become the white knight. He appears just as clueless as last time, this time even forgetting the names of his teammates very easily.

Abilities
Tadakuni hasn’t been shown to have any noteworthy abilities. Rather to the contrary, his general knowledge is shown to be poor relative to his friends. He is also exceptionally clumsy, having almost single-handedly destroyed lots of electrical equipment and having spilled paint all over the floor when trying to clean his classroom.

Trivia

 * Tadakuni’s last name remains unknown. He is the only member of the main trio whose full name hasn’t been revealed.
 * With 38 appearances across 139 chapters (extras included), he is the 4th-most featured character behind Hidenori, Yoshitake and Motoharu.
 * Despite being known as a neglected character, he secured the 3rd place in the character popularity poll, beating out the other members of the main trio. Apart from this, there are other references to him in the poll:
 * Tadakuni in girl’s clothing – 64th place
 * Tadakuni’s sister’s brother – 64th place