After pausing briefly, Ito Chuan continued, "Those who came back here all died, it was my sister and I who erected the tombstones for them. My sister originally planned to earn money at the Yamada Group to pay for my treatment, but the amount Matsushima Hospital demanded was simply too much."
"My sister was afraid that earning money would take too long and that it would be too late to treat my illness, so she chose to participate in underground boxing. The rest, Mr. Yang Yu, you probably can guess."
"Yes, I think I understand," Yang Yu asked a question, "Little brother Ito, when you were at Matsushima Hospital, did you notice anything unusual about that hospital? Something that makes it different from other hospitals?"
"Different?" Ito Chuan thought for a moment and nodded, "Their hospital should have two parts, one part is no different from a normal hospital, and the other part should be the hospital's secret laboratory."
"Secret laboratory?" Yang Yu frowned, "What do you mean?"
