Chouji sounds more amused than unhappy when he admits, "I wasn't sure about the party at first. Ino announced my birthday to the entire village before I realized it."

"It was you, then, last time?" He thinks for a moment. Yes. Shikamaru did mention that the two of them showed up in September the first time. Chouji wants to make a replacement for the gift that he apparently gave Shikamaru then. "You still need to teach me Pai Sho," he reminds his teammate.