<figure id="attachment_466298" aria-describedby="caption-attachment-466298" style="width: 791px" class="wp-caption alignnone"><a href="#" data-ident_hash="a0d3675f"><img src="https://res.cloudinary.com/fridaydigital/image/private/t_article_image/wpmedia/2026/04/e2a2c9f3a9d8fea6a2d4420a55a28e1c.jpg" alt=""></a><figcaption id="caption-attachment-466298" class="wp-caption-text">Yamaguchi, covering his face with both hands, trying to avoid being photographed. It looked as if he was praying for something.</figcaption></figure>
<h3><span class="strongInContent"> Exposing indecent images.</span></h3>
<p><span style="font-size: 1rem;">Another</span> sexual assault by a teacher <span style="font-size: 1rem;">?　That&#8217;s all I can say. A teacher who sexually assaulted a minor was arrested.</span></p>
<p> On April 21, the Tokyo Metropolitan Police Department re-arrested a public junior high school teacher, Ko Yamaguchi, 28, for indecent assault of a teenage girl on charges of non-consensual sexual intercourse, photographing sexual acts, and violation of the Child Prostitution and Child Pornography Law (manufacturing).</p>
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<p><span class="strongInContent"> Yamaguchi is suspected of having had sexual intercourse with an underage girl in September 2012 at an apartment in Katsushika Ward, where he was living at the time, and of having filmed and saved the scene with a smartphone. In January of this year, when the girl blocked Yamaguchi&#8217;s LINE and tried to cut off contact with him, an angry Yamaguchi sent her threatening messages such as, &#8216;I will now expose indecent images on the Internet.</span></p>
<p><span class="strongInContent"> The incident came to light after the girl&#8217;s guardian consulted the police. Yamaguchi was arrested in March on suspicion of making threats and subsequently charged. When questioned, he admitted to the charges, saying, &#8216;There is no doubt about it.</span></p>
<p> At 8:00 a.m. on April 22, Yamaguchi emerged from the Katsushika Police Station at the head of a group of suspects being sent to the police station for investigation. He appeared with his face down and his hands covering his face. He was wearing shaggy hair and a mask, but his face was completely obscured. It appeared as if he was praying for something.</p>
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<p> Although his job is to watch over and support the growth of children, Yamaguchi committed an indecent act, and when his contact was cut off, he turned on him and became almost like a stalker. What kind of existence did children have in his mind?</p>
<p> The sexual assault of a girl by a teacher was reported in &#8220;FRIDAY Digital&#8221; on April 7. In this case, a high school teacher in his 20s was arrested on charges of violating the Youth Protection and Nurturing Ordinance and of violating the Child Prostitution and Child Pornography Law by taking a 17-year-old female high school student into his home and indecently assaulting her, taking pictures and videos with his smartphone.</p>
<div data-friday-nextpage-lead=" Are teachers more likely to be interested in minors?"></div>
<h3><span class="strongInContent">The &#8220;composition&#8221; of the crime is caused by &#8220;deviant people.&#8221;</span></h3>
<p> When so many sex crimes by teachers occur, it is easy to think that &#8220;people who are interested in minors may become teachers,&#8221; or that &#8220;teachers are more likely to be sexually interested in minors. However, <span class="strongInContent">&#8220;it is not that simple,&#8221;</span> says a case writer who is familiar with sex crimes <span class="strongInContent">.</span></p>
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<p><span class="strongInContent"> There are accounts on the Internet claiming to be teachers who lie that they became teachers because they like minors, but we don&#8217;t know how true this is, and even if it were true, it would be a special case. I have also heard from educators that it has become difficult to secure teachers and that they have no choice but to hire them even if they are not sure about their personalities.</span></p>
<p><span class="strongInContent"> However, the 134 teachers who were disciplined for sexual assault against students in the 2012 school year accounted for only about 0.02% of the total number of teachers in the profession.</span></p>
<p><span class="strongInContent"> Teachers are in a position to interact with minors on a daily basis and are accustomed to communicating with them. In this context, there will be a certain number of cases in which the relationship crosses the line. It is not so much that &#8220;it happens because they are teachers,&#8221; but rather that &#8220;some people who are in a position to have a lot of contact with minors go out of line.</span></p>
<p> The spread of social networking services has also changed the situation.</p>
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<p><span class="strongInContent"> &#8220;It is no longer unusual for students to connect with minors who are not their students outside of school. This is a trend that has been seen in the past few years.</span></p>
<p><span class="strongInContent"> In cases such as the one involving a minor who is not a student at the same school, the traditional &#8220;hierarchical relationship between teacher and student&#8221; cannot be used to explain the situation. Rather, it should be seen as a situation where anyone can have contact with a minor, and someone in the position of teacher has taken advantage of this in a deviant way.</span></p>
<p> Even if only a limited number of people are involved in sexual crimes, this is something that should not happen to those who are in charge of children.</p>

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<div data-friday-nextpage-lead=" [Photo] &quot;Flicker&quot;?　Suspect Yamaguchi at an inspection"></div>
<figure id="attachment_466297" aria-describedby="caption-attachment-466297" style="width: 786px" class="wp-caption alignnone"><a href="#" data-ident_hash="5048ff79"><img src="https://res.cloudinary.com/fridaydigital/image/private/t_article_image/wpmedia/2026/04/0023b8bacfff70d869e76e5319be15ec.jpg" alt=""></a><figcaption id="caption-attachment-466297" class="wp-caption-text">When he appeared, the suspect Yamaguchi was already hiding his face. Cases of concealment from this point on are rare.</figcaption></figure>
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<figure id="attachment_466299" aria-describedby="caption-attachment-466299" style="width: 672px" class="wp-caption alignnone"><a href="#" data-ident_hash="9dbfdd44"><img src="https://res.cloudinary.com/fridaydigital/image/private/t_article_image/wpmedia/2026/04/27fe34944fce97f310725af73fb9ad66.jpg" alt=""></a><figcaption id="caption-attachment-466299" class="wp-caption-text"> How is it possible for a teenage girl to blackmail him out of anger when he blocks her LINE, not only as a teacher but also as an adult?</figcaption></figure>
<figure id="attachment_466300" aria-describedby="caption-attachment-466300" style="width: 815px" class="wp-caption alignnone"><a href="#" data-ident_hash="3450297a"><img src="https://res.cloudinary.com/fridaydigital/image/private/t_article_image/wpmedia/2026/04/d8a0ffb677f44877a81a36363c53d885.jpg" alt=""></a><figcaption id="caption-attachment-466300" class="wp-caption-text"> This time he was arrested for non-consensual sexual intercourse, violation of the Child Pornography Law, etc.</figcaption></figure>
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<figure id="attachment_466301" aria-describedby="caption-attachment-466301" style="width: 888px" class="wp-caption alignnone"><a href="#" data-ident_hash="91991578"><img src="https://res.cloudinary.com/fridaydigital/image/private/t_article_image/wpmedia/2026/04/7ac23e340c2c3413f3ec8bebfb7c1ef5.jpg" alt=""></a><figcaption id="caption-attachment-466301" class="wp-caption-text"> I could see her face slightly when she came right next to me.</figcaption></figure>


 Shinji Hasuo

 On April 21, a 28-year-old junior high school teacher was arrested again for having non-consensual sexual intercourse with a teenage girl, which was triggered by the fact that he threatened the girl in anger after she blocked his LINE. Why do teacher sex crimes persist to this extent?

Blocked on line and upset?　Another teacher’s indecent act with a teenage girl… “Structure” of frequent scandals.

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Blocked on line and upset? Another teacher’s indecent act with a teenage girl… “Structure” of frequent scandals.

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Blocked on line and upset?　Another teacher’s indecent act with a teenage girl… “Structure” of frequent scandals.