Team Q4 arrive in Hong Kong for the next round of the Circuit. At the stadium entrance, they encounter another participating team and twin girls. The special rule for this stage of the circuit is revealed to be 2-vs-2 tag fights. In the first round, Aichi Sendou and Misaki Tokura are drawn against Terence Lao and Felix Lao, two members of the team they met at the entrance, Team Lao. As the fight progresses, Aichi and Misaki struggle to adapt to the unfamiliar rules while under pressure from Team Lao's skilled teamwork.