Beijing time on December 21, according to Japanese media reports, in the 2022 World Short Course Swimming Championships men's 400-meter medley Seto Daiya, who created an unprecedented six consecutive championships, had another incident at home. His wife Mabuchi Yuka was so tired that she suffered from severe pneumonia because she had to take care of diving and taking care of her two daughters at the same time. She was admitted to the hospital with severe pneumonia.

The 28-year-old Seto Taiya, together with his teammates Hagino Kosuke and the Chinese team's Wang Shun, are known as the "Three Elites of Asia Medley 94". Compared with the latter two who realized their dreams of Olympic championships in Rio and Tokyo, Seto Daiya failed to reach the top podium in both Olympic Games, and his most glorious performances were all left in the swimming world championships arena. Especially at the World Short Course Swimming Championships, Seto Daiya not only achieved six consecutive championships in the 400-meter individual medley, but also achieved a breakthrough in the 200-meter butterfly event this year, winning the gold medal for the first time. At this point, Seto Daiya is extremely competitive in the 200-meter butterfly, 200-meter breaststroke, , 200-meter medley, and 400-meter medley.

can still maintain such outstanding abilities and status at the age of 28. Seto Daiya's hard work and talent are self-evident. At the same time, his cheating scandal that was exposed outside the stadium is also a hot topic in the Japanese sports world. In 2020, he was photographed having a tryst with his lover in a hotel, and was later exposed to have affairs with two other women. When the evidence was conclusive, Seto admitted the fact of cheating during marriage. Suddenly, Seto Daiya was criticized by thousands of people, and sponsors removed the advertisements he shot. According to Japanese media reports, Seto Oya’s financial losses due to the cheating scandal were as high as 100 million yen.

Seto Daiya’s wife is named Yuka Mabuchi, and she is a diver. Her parents are both Chinese, so Seto Daiya has the title of "Chinese son-in-law". After the marriage, the two had two daughters. Yuka Mabuchi chose to forgive her husband after the scandal of Seto Daiya's cheating in marriage was exposed. After the scandal of the cheating scandal gradually subsided, Seto Daiya continued his swimming career, while Mabuchi Yuka chose to come back and return to the diving arena. Because her husband was away training and competing all year round, Ma Yuan Youjia took care of her two daughters at home alone while also taking care of diving training. She was eventually so tired that she suffered from severe pneumonia and was hospitalized for a week.