Jixia College has come up with a surprise move, inviting outstanding graduates to return as temporary "substitute teachers"! Zhou Yu and Zhuge Liang Zhan launch a "dual-teacher showdown," with Yao and the "Star Team" and current students creating hilarious daily interactions with their seniors. When a mysterious crisis strikes, teachers and students set aside their identities and join forces to fight. Amid endless blunders and passionate moments of fighting side by side, the unique story of Jixia's legacy continues.