Strong and Prosperous Nation (Korean: 강성대국 ; hanja: 强盛大國 ; RR: gangseongdaeguk; MR: kangsŏngtaeguk, literally "powerful and great country") is a policy initiated by North Korean leader Kim Jong-il.
 The term first appeared in North Korean media in August 1998 in reference to Kim Jong-il having provided "on-the-spot guidance" in Chagang Province in February 1998.
 In an effort to build a “strong and prosperous” nation, North Korea focuses on four areas: ideology, politics, the military, and the economy.
Kim Jong-nam (Chosŏn'gŭl: 김정남 ; Hancha: 金正男 , ] or ] ] ; 10 May 1971 – 13 February 2017) was the eldest son of North Korean leader Kim Jong-il.
 From roughly 1994 to 2001, he was considered the heir apparent to his father.
 He was thought to have fallen out of favour after embarrassing the regime in 2001 with a failed attempt to visit Tokyo Disneyland with a false passport, although Kim said his loss of favour was due to advocating reform.
Kim Jong-suk (Chosŏn'gŭl: 김정숙 ; Hancha: 金正淑 ; December 24, 1919  – September 22, 1949) was a Korean anti-Japanese guerrilla, a Communist activist, North Korean leader Kim Il-sung’s first wife, former leader Kim Jong-il’s mother, and current leader Kim Jong-un's grandmother.
The Sinuiju North Korean Leader's Residence, which may locally be known as the Central Luxury House or Central Luxury Residence, is one of the many official residences of North Korean leader Kim Jong-Un.
 He reportedly took over the residence from his father, Kim Jong-il  after the elder Kim's death in 2011.
 The residence is located near Sinuiju, in the North P'yŏngan province of North Korea.
 Public knowledge about the residence came to light through the North Korea Uncovered project.
The assassination of Kim Jong-nam (Chosŏn'gŭl: 김정남 ; Hancha: 金正男 ) occurred on 13 February 2017 when two women attacked him with VX nerve agent, a lethal chemical weapon, at Kuala Lumpur International Airport in Malaysia.
 Kim was the eldest son of deceased North Korean leader Kim Jong-il and the half-brother of current North Korean leader Kim Jong-un.
 The assassination is under investigation but is widely believed to have been ordered by the North Korean government.
Kimjongilia is a flower named after the late North Korean leader Kim Jong-il.
 It is a hybrid cultivar of tuberous begonia, registered as "Begonia" × "tuberhybrida" 'Kimjongilhwa'.
 When Kim Jong-il died in December 2011 the flower was used to adorn his corpse for public display.
 Despite its name, the Kimjongilia is not the official national flower of North Korea, which is the "Magnolia sieboldii".
 Another flower, Kimilsungia, is an orchid cultivar named after Kim Jong-il's father and predecessor, Kim Il-sung.
Kim Young-sik (born 1953) is a Seoul engraver of Oriental seals who impersonates North Korean leader Kim Jong-il.
 Ever since his sister-in-law teased the businessman's sagging form as a likeness to the chairman, Kim Young-sik has portrayed Kim Jong-il at every opportunity, in movies, television shows, commercials, and for personal appearances.
 "When someone tells me I don't resemble Kim Jong-il in certain respects, I'm unhappy," said Kim in "The Korea Times".
 Unlike his more cosmetically enhanced competitor Bae Eun-sik, "I am a natural," Kim told the "Los Angeles Times".
 "I didn't have to perm my hair.
 I didn't need plastic surgery.
 Even my family name, Kim, didn't have to be changed.
 Sometimes I feel like I "am" Kim Jong-il."
 Kim, whose stated goal is to have the leader say, "Little Brother, come and see me," affirms, "I wouldn't want Kim Jong-il to be offended by anything I do.
 I don't want to portray him as an evil person."
General Kim Kyong-hui (Hangul: 김경희 ; Hanja: 金敬姬 ; born 30 May 1946) is the aunt of current North Korean leader, Kim Jong-un.
 She is the daughter of the founding North Korean leader Kim Il-sung and the sister of the late leader Kim Jong-il.
 She currently serves as Secretary for Organization of the Workers' Party of Korea.
 An important member of Kim Jong-il's inner circle of trusted friends and advisors, she was director of the WPK Light Industry Department from 1988 to 2012.
 Her husband was Jang Sung-taek, who was executed in December 2013 in Pyongyang, after being charged with treason and corruption.
 There have been many unconfirmed reports that she is suffering from poor health, has died of illness, or has been killed.
Kenji Fujimoto (藤本 健二 , Fujimoto Kenji , born 1947) is the pen name of a Japanese chef who claimed that he was former North Korean leader Kim Jong-il's personal sushi chef from 1988 to 2001.
 Fujimoto published a memoir in 2003 entitled "I was Kim Jong-il's Cook", detailing many of his experiences with Kim Jong-il.
 Many people doubted the veracity of his claim.
 However, Fujimoto, contrary to the prevailing consensus of experts on North Korean politics, asserted that Kim Jong-un (who was relatively unknown at that time), rather than Kim Jong-nam, would be appointed as Jong-il's successor.
 Fujimoto's prediction proved true when Jong-un succeeded his father as Supreme Leader in December 2011.
Song Hye-rang (born 1935) is a North Korean defector and author.
 Her father was a wealthy South Korean landowner who moved to the North for political reasons, while her mother was an editor of the official North Korean newspaper "Rodong Shinmun".
 Song's younger sister Song Hye-rim, a popular actress, secretly began an affair with Kim Jong-il against his father Kim Il-sung's wishes in the late 1960s or early 1970s, which culminated in Hye-rim's forced divorce from her husband; Hye-rang first learned of the situation on 10 May 1971, when Kim came to her residence in the middle of the night and informed her that he had impregnated her younger sister.
 Five years later, Hye-rang would become responsible for raising Kim Jong-nam, the son resulting from that pregnancy; his father was unwilling to let him attend school for fear that the secret of his parentage would be revealed.
 Hye-rim moved into the household; she also brought her own son Ri Han-yong and daughter Ri Nam-ok to live with them, so that Jong-nam would not be lonely.
 Their lives were carefully managed by Kim Jong-il to ensure that his father would not find out about his continuing affair; they spent most of their time at residences in east Pyongyang or Chungsangdong, occasionally travelling overseas to Geneva and Moscow.

Question: Who was personal chef to the eldest son of North Korean Leader Kim Jong-il, Kim Jong-nam?
Answer: Kenji Fujimoto