Nobita and his parents

Nobita Nobi is a little boy with the biggest glasses that I have ever seen. Nobita is the son of Tamako Nobi (Mrs. Nobi) and Nobisuke Nobi (Mr. Nobi). He is very unlucky, very bad in studies and very lazy (in conclusion, he is a disaster). One day, he found to Doraemon, the protagonist of the serial, a fat robot "cat" with a bag in his abdomen. Nobita always ask for inventions of this strange cat, because he has a problem, he doesn't study for an exam, he want surprise to Shizuka (his loved) or he want help to someone. Curiously, he always fail with this inventions.
Tamako Nobi is the mother of Nobita. She also has the big glasses of his son and she is always angry. When she see to Nobita, he always ask him to buy the food, to tidy his room, that he show an exam to her, etc. Nobita is very scared of his mother and he always try to hide his exams. When Tamako appear in the serial, she is scolding him because he has bad marks in his exams (when she was young, she had bad marks too).
Nobisuke Nobi is the father of Nobita. He hasn't glasses, but he's fat and he's always smocking. He loves to fish. When Nobita has a problem, he ignore him, so he is always discussin with his wife because he doesn't help to his son.