Kaminishi and Matsuoka are remaining silent about the charges, but Kajiwara has admitted to the allegations, police said.
How the suspects know each other remains unclear, but Kajiwara said he was "invited by Matsuoka" to participate in the alleged gang rape.
Claimed room was "rental lounge"
On April 30, 2016, the three suspects allegedly gang-raped the teenager when she was intoxicated and unable to resist in the apartment in Ota Ward rented by Kaminishi, TBS News reports (Feb. 16).
On that day, the men were drinking with numerous women in the room, in which there were several other people unrelated to the case. Kaminishi sexually assaulted the teenager alone, and raped another unconscious teenager the same night, police said.
Kaminishi included photos of the room, which he decorated with flasks and lighting, when he invited women under the guise of holding barbecue parties. He explained that the room was a "rental lounge."
A TBS News reporter said that "Kaminishi rented out this apartment, invited numerous women there, and repeatedly carried out sexual assault."