5 Million Dollar Life

When Mirai Takatsuki was a young child, he had a life threatening disease that could only be saved after a 500 million yen surgery. His parents were able to raise this amount through public donations. He is now a healthy high school student, but he is having a hard time living up to people's expectations and the media attention. One day, he decides to kill himself and writes this on social media. He then receives a message from a stranger stating, "If you want to die, you have to return the 500 million yen first."
He then sets out on a life changing journey.
(Source: MDL)