Soichi Yui

 is a character in The Turing Test

Summary
Soichi Yui had no childhood interest in space travel; instead he spent his youth studying the life in Lake Biwa near his home town. Yui went on to study marine biology, and chemistry at Kyoto University. After the tragic death of his wife, Rin, he disappeared into his work, re-emerging 11 years later as a preeminent exobiologist.

In Soichi's crew quarters, there can be found a violin, two pictures of himself and his dead wife, Rin, a wedding ring, a bonsai tree, and a datapad containing a correspondance between an ISA representative, and another with Chris Maclean. It is evident that Soichi is aware of the affects of the neural implants as discovered by Mikhail Tokarev. There is a bottle of Riluzole on his desk, as well as motion sickness medicine. Soichi is in large part responsible for introducing the Europa virus to the human crew.