While Eru was observing the people that come and go, he felt someone sit next to him. "If you're going to make fun of me again, I'll knock that stupid head of yours", Eru grumbled in annoyance. But when he saw who it was that sat next to him, Eru's expression sank, and sweat poured from his forehead. "H-hello, sir", Eru greeted the middle-aged man beside him, stuttering in his words.