Yuuta Togashi and Rikka Takanashi, the awkward lovebirds, are now living together as they begin a new school year, but their charming relationship remains static. Yuuta struggles to adjust to having a chuuni girlfriend, but the rest of the gang—Sanae Dekomori, Shinka Nibutani, and Kumin Tsuyuri—remains unchanged despite having moved a grade. To make matters worse, Satone Shichimiya, a chuuni girl from Yuuta's middle school, arrives... Will Yuuta be able to deepen his connection with Rikka in the midst of the different events whirling around him?