A liquid jetting system includes a liquid container including a front wall, and a side wall having a bias-force receiving part, and a liquid jetting apparatus including a holder that receives installation of the liquid container through insertion of the liquid container in a prescribed insertion direction with the front wall facing forward. The holder further includes a liquid feed needle that receives feed of liquid from the liquid container when the liquid container has been installed, a holder-side electrode situated to a upper side from the liquid feed needle and adapted to electrically connect with the liquid container when the liquid container has been installed, and bias force part situated to a lower side from the liquid feed needle and adapted to exert a bias force on the bias-force receiving part of the liquid container in a prescribed biasing direction when the liquid container has been installed. The liquid container further includes a feed part having a liquid feed port that opens onto the front wall and that receives insertion of the liquid feed needle when the liquid container has been installed in the holder, and a container-side electrode that is to be secured at such a location as to electrically connect with the holder-side electrode when the liquid container has been installed in the holder. The biasing direction is established such that an extended line extending in the biasing direction from the bias-force receiving part is offset from the container-side electrode towards the side wall side.