A travel package currently being sold in Japan that includes a tour of the Ulsan Japanese Castle (Wae-seong), built by Kato Kiyomasa—a vanguard commander of the Japanese invasion forces who was also known as 'Kiyomasa the Devil'—is sparking controversy.

The promotional material for the tour includes phrases such as "historical romance" and "strategic stronghold," raising concerns that it could be used to glorify a history of invasion.

(Reported by Yang Hyun-yi | Video by Hong Jin-young | Graphics by Lee Soo-min | Sources: Venus Travel, Tokyo National Museum, National Heritage Portal | Produced by SBS Digital News)