A strange man knocked at the door!

"My parents were Christian" , Isaac said, while he was loosening the neck of his shirt. He had it from one of that reception camp for poor people.
"Isaac means laughter", she whispered, looking at the filter tip.
"What?" Isaac asked, rubbing his hands against the trousers larger than his own size.
"Isaac mens laughter", she repeated, but her voice sounded distant, because she was lost in her thoughts.
Isaac shook his head. He knew Sanskrit, Hebrew, Greek and the majority of European languages, but he never checked the etymology of his name. " It didn't suit me", he thought. He was a calm, serious man; he loved loneliness and silence, but his parents couldn't know it in advance.
"And you? What's your ..." , he began to ask the young woman before the door bell rang.
The young woman put the cigarette out, using her spike heel. "Nika", she answered, before coming back into the flat.
The door bell rang again.
"Nika", Isaac muttered to himself and his mouth stayed opened for some seconds. Then he turned towards his flat. Someone was knocking energically.
"Isaac?" a Chinese (Chinese here would be an adjective, so provide the noun. a Chinese man, woman, boy or girl, for example) asked him, as soon as Isaac opened the door.
"Isaac Tutuola?" The Chinese (again, Chinese here would be an adjective, so provide the noun. a Chinese man, woman, boy or girl, for example) made sure to be in the right place. 

Isaac nodded more times.
"Have you ordered the dinner?" The Chinese (Chinese here would be an adjective, so provide the noun. a Chinese man, woman, boy or girl, for example) asked him with a strong Chinese (correct use of Chinese as an adjective) accent. 

Isaac nodded again, took the paper bag that the Chinese gave him and paid a $10 note. The University lent him a little money and Isaac didn't have any more. He had no passport, no luggage and his amnesia was beginning again.
"How did he go on that boat?" He wondered, rubbing his temples to ease the mental stress.