Japanese Man Arrested for Allegedly Breaking Into Colleague’s Home to Steal Her Underwear

Japanese Man Arrested for Allegedly Breaking Into Colleague’s Home to Steal Her Underwear​

Security camera was among the stolen items.​

by Haiz

June 27, 2025

A 27-year-old man from Kawasaki City was arrested for repeatedly breaking into his female colleague’s apartment in Ota Ward, Tokyo, Japan, using a key he had secretly duplicated, according to police in Kanagawa Prefecture.

Suspect and Victims are Colleagues​

The suspect, Yuki Murai, worked in the same office as the woman and had been entering her apartment without permission since around August 2024.

His actions only came to light after the woman, who is in her 20s, noticed several of her belongings going missing and alerted authorities.

Took Photo of Her Key to Make a Copy​

According to Tokyo Reporter, Murai found the woman’s house key inside her bag at their workplace.

He photographed the key, which displayed the manufacturer and serial number, and later used this information to create a duplicate without her knowledge.

Stole Personal Items​

On March 30, 2024, at around midnight, Murai allegedly entered the woman’s apartment and stole six personal items.

Among them were underwear, a handbag, lip balm, and a small security camera.

The stolen goods were estimated to be worth about 15,000 yen (approx. S$131).

Suspect Admitted to Acting Out of Spite​

Police said Murai was motivated by personal feelings toward the woman.

When questioned, he reportedly confessed,

“I had feelings for her. I wanted to make her feel bad because she ignored my Line messages,” according to reports.

Click to expand...

Hundreds of Photos Found on His Phone​

Furthermore, authorities discovered over 300 photos of the interior of the woman’s apartment stored on Murai’s smartphone.

Police also believe these were taken during the more than 20 times he is suspected of unlawfully entering her home.

Security Camera Installed Also Stolen​

The woman initially grew suspicious after noticing her underwear was missing.

She installed security cameras in her apartment to monitor the situation, but those cameras were also stolen, prompting her to report the incidents to the police.

You cannot stop a man from his quest. Some build companies, businesses, others into research and science. In this case, its a bit different.

Japanese ninja

This case reminds of K movie titled Following.



Koo Jung-Tae (Byun Yo-Han) is a real estate agent. His secret hobby is peeping into the private lives of other people. He sometimes uses his job to go into his clients' homes to pursue his hobby. Koo Jung-Tae becomes interested in social media influencer Han So-Ra (Shin Hae-Sun), who posts staged stuff like photos of vegan salads while eating convenience store sausages. He begins to observe her more closely. One day, Han So-Ra visits Koo Jung-Tae's real estate office as a client and entrusts her home key to him. Koo Jung-Tae later sneaks into her home and uncovers a surprise. After that, someone, who knew he entered Han So-Ra's apartment, threatens him. Koo Jung-Tae is then brought into the police station and questioned by Detective Oh Young-Joo (Lee El). Koo Jung-Tae decides to find the criminal that is responsible for his troubles by using Han So-Ra's social medial account.

Cast​

Byun Yo-Han	Shin Hae-Sun	Lee El
Koo Jung-Tae	Han So-Ra	Oh Young-Joo

If your underwear got stolen,you are considered a victim?