Japan's now former princess Mako and her new husband Kei Komuro spoke as newlyweds for the first time on Thursday about the love that unites them and the difficulties surrounding their relationship.

Earlier in the day, Mako civilly married commoner and former university classmate Komuro, both 30, after years of delays, marking her departure from the imperial family.

A spokesman for the Imperial Household Agency confirmed to Efe that the marriage registry documents were delivered to the town hall by an agency official at around 10 am (01:00 GMT), and the niece of Emperor Naruhito was seen off from her imperial family residence in Tokyo by her parents, Crown Prince Fumihito and Crown Princess Kiko, and her sister Princess Kako.

In front of the media at the Grand Arc Hotel Hanzomon in Tokyo, near the Imperial Palace, Mako said that Komuro is "irreplaceable" and that they got married in order to be true to their hearts.

Alongside her, Komuro said that he "would like to build a warm family with Mako. At the same time, I would like to continue to support Mako by doing everything I can."

Mako added that while they are likely to face some tough times, "we will join forces and move forward together."

Both took the opportunity to thank the public for the support they have received, and apologized for the controversy surrounding an alleged financial dispute between Komuro's mother and her ex fiance that sparked criticism and for years delayed the wedding.