On Nov. 23, 2015, just a year and a half after his appearance on Terrace House, Yosuke suffered a heart attack that interrupted the blood supply to a part of his heart so severely that he was unable to recover from the incident. Yosuke died at just 31 years old. 

The heart attack was said to be a complication from to the excessive amount of weight he had been working to lose just a few months prior. 

Yosuke’s struggle with his weight had been known for a while. In fact, in December of 2014, he released a book of diet-friendly Japanese recipes that were inspired by his own weight-loss journey. 

However, in his attempts to shed extra weight, Yosuke’s body went through too much stress, which had the unintended and tragic result of putting excessive pressure on his heart and causing his death.