1x07 - Head Post Office Beehive, 13 Nocturne Way, Central Yuusari

Lag decides to make Niche his dingo officially, and reaches the Yuusari Head Post Office, known as the Bee-Hive. He and another boy named Macky Gee begin the Bee suitability interview examination, which consists of delivering one real letter safely to its destination. Knowing he is delivering a real letter, Lag's determination is strengthened yet again