生残 is read as せいざん (seizan) and means survival.
せいざん
seizan
いきのこる
to survive
いきのこり
survival
せいかつざんぎょう
(working) overtime to make ends meet (to support one's lifestyle)
せいざんしゃ
survivor
ざんせい
the remainder of one's life
いきかえる
to revive
きぐすり
natural drugs
せいかつ
life
せいさん
production
せいめい
(one's) working life
せいと
pupil
せいぞん
existence