The affect is that this narrator wants people to understand that he isnt like any other jock in the school. He wants them to know that he is diffrent.
Marielle Tsukamoto
An interviewee is the person that is being interviewed. In "Inteview with Marielle Tsukamoto, Marielle Tsukamoto is the one who is being interviewed. The interviewer is the one who is asking the questions. 5th-grade students are the ones asking the questions so they are the interviewers.
The entire interview is about Marielle Tsukamoto's experience as a Japanese American during World War II. Most specifically about her time in an internment camp.
I would have to say black, because it just fits with most creepy books. Sorry if you can't figure out an explanation.