The death of a loved one is traumatic at the best of times, but when it occurs abroad it can be that much more difficult for family and friends who may be at a loss about how to bring the deceased home.

Located in Haneda airport's restricted zone, a short walk from the international arrival and departure gates, is a company that operates in obscurity, dutifully performing its solemn task when a person, Japanese or not, dies far from home.

Airhearse International Inc., under the leadership of President and Representative Director Rie Kimura, is exclusively in the business of repatriating mortal remains from Japan and abroad.

But handling a death that occurs overseas is a complex process involving several administrative procedures, including obtaining the requisite documentation and ensuring the cremation or embalming of the body, not to mention the often hefty costs for transporting human remains. Airhearse prides itself on running a mortuary service that stands above the run-of-the-mill funeral parlor.

According to the Foreign Ministry survey in 2015, 533 Japanese people died overseas that same year.

"In most cases Japanese have travel insurance, and when something happens, we get a call from the insurance company and the case begins," Kimura, 56, said in a recent interview with Kyodo News at the company's office.

"Recently many people who are used to traveling just use their credit card (coverage) and think to themselves, 'It's okay, nothing ever happens.' It's these people that something happens to," she said, pointing out the often limited coverage of credit cards in cases of death overseas.

Since its establishment in 2003, Airhearse has been involved in the transport of bodies or remains of many Japanese, even those who have died in high-profile incidents, including in the 2004 Indian Ocean earthquake and tsunami and the 2016 Dhaka terrorist attack, in which seven Japanese hostages were killed.

The six-person operation, which occupies office space in the Tokyo International Air Cargo Terminal whose customers are commercial airlines, has also dealt with its share of foreign expats or vacationers who have died in Japan.

"For foreign nationals, we carry out (to the letter) the compliance laws of Japan. In this respect, we are completely different from your typical Japanese funeral parlor" that might skirt certain procedures, Kimura said.

"Of course, we get emails from foreign families, saying for example (the body of) my dad is at this police station, what should I do? Or direct calls from the family by phone. But there's not just one situation, we have various cases."

According to the health ministry, 6,915 registered foreign nationals died in Japan in 2016. Many of them were presumably repatriated or may have had their remains interred in Japan, albeit at a high price in a country that faces a scarcity of plots.

There are also foreign tourists or lone travelers with little connection to Japan who might be involved in accidents or other incidents, making handling their deaths all the more delicate.

In an average year, Airhearse handles about 80 to 120 deaths in all -- probably close to about 70 percent Japanese and 30 percent foreigners.

Kimura talked about extreme cases such as particularly violent suicides where the body required a lot of repairs before the appropriate embalming techniques could be carried out and the body transferred to the bereaved family.

She recalled a case of a solo traveler in Japan.

"The person jumped from a hotel window and was impaled by a park fence," she said. Here again, Kimura says, is where Airhearse will make every effort to restore the body to its best possible state.

In all cases dealing with foreigners, Airhearse does its utmost to repatriate remains according to religions and customs of the deceased, Kimura says. For example, whereas Hindus in India allow for embalming, Muslims, as a rule, do not. "We have to figure out what to do but we always confirm their religions," she said.

In one particularly tricky case, Airhearse stepped in to assist the return of an elderly woman from Japan to Afghanistan's war-torn capital Kabul during the Taliban insurgency after a funeral parlor failed to carry out the family's wishes.

Part of the family had fled to Japan while the woman, who was sick, escaped to Pakistan.

"They fled to Japan and obtained (Japanese) nationality but didn't speak any Japanese. The son of the elderly woman who lived in Japan got her to come over for treatment but she soon died."

Kimura described how the son, whose family was of Islamic faith, wished to have his mother's body repatriated for burial in Afghanistan despite the country being at war but eventually acquiesced to having her placed in one of only a few Muslim cemeteries in Japan at that time.

The granddaughter called Kimura, saying that a local funeral parlor in Kitakyushu had transported the body by hearse to Yamanashi Prefecture, west of Tokyo, but after arriving they discovered that not only was there no religious representative to perform the rites but a power shovel was there being used to dig the grave.

"The father got really angry, and so the granddaughter called me and asked if we could do anything to send her grandmother back to the Afghan capital Kabul."

Kimura told the granddaughter that because there were no commercial flights available, even from Dubai to Kabul, it could only be done by a special charter flight.

"I told her you will need a lot of money because no one is going to take that job. It would be totally different from repatriating the body to Pakistan."

Although initially upset about the high cost, with no choice available the granddaughter convinced her father to hire Airhearse.

"This was the first time something like this was done from Japan. We sought out a special route and were able to have them do the proper burial in Kabul. It was an extremely difficult case," she said.

Respecting religions and customs is just one aspect, says Kimura. Strictly carrying out administrative procedures, including ensuring that death certificates are obtained and bodies are properly embalmed for transport to clear quarantines and airport customs is at the heart of Airhearse's business.

Embalming done improperly, which Kimura talks about in the second installment of this series, can lead to some fairly devastating results in the preparation of a body for international repatriation.

(This is Part I of a 3-part series on Airhearse international's body repatriation business)