Our team represents the Emergent Systems Laboratory at Ritsumeikan University. The aim of our team is to realize human-robot collaboration inspired by symbol emergence in robotics. The slogan of our team is 'SER4U', which means Symbol Emergence in Robotics for you. '4U' also means Unique, Unpredictable, User-oriented, and Useful. The team's logo consists of the 'wheel duck' robot, and '+R' which means Ritsumeikan University. The word 'Ducker' refers to the bird of Shiga prefecture, where our university is located.