Yusuke Kudo, one of the 4 playable characters in left 4 dead: Survivors, the Japanese version of l4d2

Yusuke’s Bio states the following: "A Japanese college student who was visiting America during a long-sought trip when the outbreak began." So basically He was in a simmaler situation to Haruka and Sara Except his trip to America was decided on his own and not in a school trip. Its implied that he has traveled around the globe

Yusuke takes the place of Nick and Bill.

Unconfirmed facts:

•I reading somewhere that he may be in a relationship with Sara but I have no way of Confirming this