A Swedish millennial bought one of Japan's famously cheap abandoned houses. Here's how he turned the 100-year-old property into a luxury Airbnb.

• Anton Wormann, a 30-year-old Swedish model, moved to Tokyo in 2019 after visiting for work. 
• Wormann started buying and DIY-renovating cheap, neglected houses in his neighborhood. 
• His most recent project was a 100-year-old "akiya" that hadn't been lived in for 10 years. 

While rebuilding an abandoned "akiya" property that he purchased in suburban Tokyo in 2022, Anton Wormann often questioned his own sanity.