Junichirou Kagami
Kagami junichirou
Kagami Jun'ichirō
Alias Sensei (Students)

The First (Luce)

Otaku Sensei (Seijūrō Nanami)

Age 24
Gender Male
Height 175 cm
Eyes Blue
Hair Orange Red/ Brown
School Hiiragi Academy
Class n/a
Occupation Blogger

Higashi Shinmei High Teacher (former)
Hiiragi Academy Teacher

Affiliation Teacher
Relatives Kagami Suzune (sister)
Manga Debut Chapter 1
Anime Debut Episode 1
Japanese Voice Actor Hiroshi Kamiya
English Voice Actor Anthony Bowling

Junichirou Kagami (鑑純一郎) is the main protagonist of Denpa Kyoushi.

He was a scholar student, however he didn't succeed. He calls himself an "ADW/YD" which stands for the patient "only able(A) to do(D) what he wants(W)"/"Yaritai(Y) koto shika dekinai(D)". As an otaku, he has a strong obsession towards anime and manga. He was a young Physics genius who wrote a thesis that was published in the science magazine "Nature and Science" when he was only 17 years old.

Eventually, his sister, Kagami Suzune, gets him out of the house by getting him a job at his alma mater as a Physics teacher.


He has red hair and blue eyes. He wears rectangular glasses and often wears his lab coat over a shirt with hoodie, however puts the hood above the lab coat.


Kagami, having an "illness" ADW/YD, is a carefree person who only does what he wants. Even when he is forced to do something he does not want to do, he always somehow includes the thing that he wants to do in the thing that he does not want to do. Just like the time where he does not want to be a teacher, and ends up influencing his students with his gaming sites and so on.

Again, due to "only being able to do what he wants", he often goes overboard for something he wishes to do,  whether he ends up doing something cool or lame, such as when he went through all the trouble of making a bet and playing a soccer game just to see an "interesting sight" from Nanami, and so on. This is how he ends up helping his students in their lives. He also tends to make huge bets and risks, such as when he bet his otaku life for a certain challenge.

Kagami has times when he, despite having a carefree and cheerful personality, has a very calm and serious face when he is aggitated or mad. Like the time when he was "teaching" Miho Kitou, or when he declared that he aimed to overthrow Hiiragi Arisu. Whenever he is angered, he puts on a serious and scary face, one that he does not make usually.

he was described by many people as "interesting". Because of his interesting personality, he tends to attract people and inspire peoples' lives.


Kagami Junichirou was a student scoring lower middle and has little interest in academics, but at some point he decided to create the Dokodemo Door (from Doraemon) and started studying theoretical physics that he even published his theory in Nature magazine and called the attention of Serm (CERN) where he worked for a while.

The manga series starts of with Junichirou's younger sister getting him a job at a school where he would become a temporary teacher. Junichirou, being an otaku who only cares about his anime, blogs,and ranking and also suffering from his "illness", is not pleased about this in the slightest.


The plot is centered around Kagami Junichirou and how, through his personality and style (and his schemes), he goes about helping the students in his class as well as inspiring them. His lessons normally involve video games or some other form of entertainment that allows him, as the otaku he is, to keep his attention as a teacher in school. As the series progresses, Junichirou becomes a teacher at Ichou Academy, the little sister school which has a more prestigous counterpart. The main branch of the school is where all the smart and bright students go and is promptly described as an educational prison with its principal being strict, demanding, and enforcing obedience. Junichirou later finds out that his teaching post at the subbranch of Ichou Academy was a test to see if he was worthy (more so "interesting" enough) to become a teacher at the main branch. Through a series of events that take place with the main branches principal (who is still in her teens) as well as the principle of Ichou Academy (the main branches principal's cousin as well as chairman of school the whole Academy), Junichirou decides that the main branch's current principal is not worthy of her position and brazenly claims that he will become the main branch's principal. He then selects a group of students from Ichou Academy and they all move to the main branch to attempt to reach the rank of SS through a series of matches known as "Group Wars". In every match both teams bet points and the winning team takes the points the other team bets. Points at the main branch are essential and you have to continuously compete with everyone since if  you lose all your points you are expelled. A main fact for competition being nesscessary is the ranking system from E to the rank of SS, E consisting of mainly farm work and destitute living condition and SS being the top of the food chain. Junichirou and his team start of at the lowest rank of E and have to work their way up. However it seems it wont be that simple to reach SS rank as you would need to not only collect points to rank up but also have to recruit other teams into wanting to become your subordinates a.k.a. "Child". Rank SS is collecting all the groups and points under your belt, and the he has a time limit of 3 months. Will he make it? And yerns to do thing for people in different situations 💝

Chapter AppearancesEdit



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