Soji Shimada 
Drowning Nermaid [EPUB ebook] 

The fault of a brain surgery made the genius swimmer into a walking dead, and she was so painful that she finally shot herself one night after winning the Olympic gold medal thirty years later.A few miles away, her primary doctor was killed almost at the same time, and the bullets that took away two lives were actually fired from the same pistol.The glory and twisted love made the truth of the mystery bury in the noisy of the Lisbon Carnival…