Yuuta Togashi and Rikka Takanashi, the endearing couple, have made the decision to move in together while starting a new school year. However, their charming romance seems to have hit a roadblock. Yuuta is struggling to adapt to Rikka's chuunibyou, and his friends - Sanae Dekomori, Shinka Nibutani, and Kumin Tsuyuri - are still displaying their quirky behaviors after being promoted to the next grade. To make matters worse, Yuuta's past returns to haunt him with the arrival of Satone Shichimiya, another chuuni girl from his middle school. With so much happening in Yuuta's life, can he overcome his uncertainties and nurture his relationship with Rikka?