Takeuchi: Kato Jun, Shao Jie and Shijie. めてのだから, からなぃことがぁったら in Japan. Let me introduce Kato Jun to you first. Because this is your first time in Japan, if there is something you don't understand, he is the one who can help you.
ぉぃ, Kato Army. こちらはこの Preface ったさん.
Hello, Kato Jun. I'm classmate Wang.
Kato, Wang:, ... Well, that's the one just now.
......
Question (1): In Hand ってくれる, the teacher told Wang that Kato was the one who could help him.
Question (1): "さっきの ...", you can add さっきの and omit people after this sentence.
If the teacher is the subject and the teacher asks Kato Jun to help himself, he can ask, what is a hand?