Japanese media are concerned about the first child of Shohei Ohtani and his wife Mamiko, who is speculated to be more than 5 months pregnant, and the child will be born after the start of the spring major league. Japanese media "Weekly Women's Seven" talked about the possibility of Mamiko giving birth in Los Angeles, if she chooses to give birth in a star hospital, like Victoria Beckham (Victoria Beckham), the cost of welcoming the child may exceed 100 million yen (4.65 million yuan)!

A Japanese health care worker living in the United States told Japanese media that Japanese people living overseas often choose to return to China for childbirth, and it is more comfortable to be in a familiar language environment. Dual citizenship is not allowed in Japan, and even if the child is born with American citizenship, the child must choose whether to retain Japanese nationality and renounce other nationality when the child reaches 20 years old.

The average out-of-pocket cost for production in Japan is 480,000 yen (22,000 yuan), and there are government subsidies. The average cost of an insured U.S. out-of-pocket birth is US$3,500 (25,600 yuan), but in the event of a birth problem such as premature birth, the cost can skyrocket into the hundreds of thousands of dollars. In addition, pregnant women in the United States are discharged from the hospital immediately after giving birth, which is very different from Japan.

The "100 million yen maternity fee" that the Japanese media is talking about is in a more extreme situation, and it is possible to add 24-hour security and personal translation, use of high-end electrical appliances, catering equipment, and a lot of expenses. Darby Shuyu and Seiya Suzuki's wives are both produced in the United States, and there is no such extravagance. The American media predicted that Mamiko would stay in the United States and let Ohtani personally welcome the birth of the child through the 72-hour parental leave provided by the major leagues (3 games off).