After a small quarrel between Sae and Hiro, they have suddenly become antagonistic to each other. After noticing the tension between the two in the school, Yuno and Miyako tries to restore their friendship by inducing Sae to apologize to Hiro. Fortunately, their plan works out as Hiro accepts Sae's apology. Meanwhile, the landlady receives a bamboo trees as a present from one of her part-time job customer and she then decides to plant it next to the Hidamari apartment. After noticing the trees, the Hidamari residents celebrates Tanabata by putting up decorations on the bamboo trees and hanging small colorful papers with their wishes written.