Begin of Doraemon story 2/2

Minor characters
Jaiko is Gian's younger sister who would have been Nobita's wife in the future had Doraemon not intervened. She appears in the very first chapter of the manga, even before the introduction of Gian. Her name Jaiko is usually considered a nickname, but Fujiko never gave her a real name. An aspiring mangaka, Jaiko goes by her amateur mangaka pen name , and sometimes submits her mangas to publishing companies for prizes.
Hidetoshi is Nobita's classmate and rival for Shizuka's affections. He always gets perfect scores on his tests, but never shows off his abilities. He willingly helps Nobita whenever he has philosophical or scientific questions. His name literally means "brilliant over-achiever", and his last name is a pun on dekisugiru, which means "over achieving". Unfortunately for Nobita, Shizuka tends to prefer the company of Hidetoshi, who is more of her intellectual equal.
Dorami, also known as Dorami-chan, is the younger sister of Doraemon. Strangely enough, they are siblings due to the fact that they shared half of the oil from a can. She lives in the 22nd-century Tokyo with Sewashi, Nobita's great-great-grandson. She is yellow and has ears that resemble a large red bow. She likes melonpan and is afraid of cockroaches. She is also shown to be a more advanced robot than Doraemon. She sometimes visits Nobita with a time machine when Doraemon is "off-duty."
Nobita's homeroom teacher. He is a strict taskmaster who often punishes Nobita for failing to do his homework. The punishments range from standing in the hallway to sweeping the classroom after-school. His real name is unknown and he is only referred to as "Sensei", but in the NTV anime his name is given as .
An old man who lives next to the vacant lot where Nobita and the gang play baseball. They sometimes accidentally throw baseballs, rocks, or even one of Doraemon's gadgets through his window, breaking it and knocking over his prized bonsai. The children refer to him as , because he shouts so loud that they scatter. Kaminari is his surname. Tameru Kaneo
Tameru tends to accompany Suneo and Jaian. He has a friend whose name is never mentioned, and the two of them are always seen together. Kane wo tameru, the way his name is read in Japanese, means "to save money" in Japanese.
Mini-Doras are actually gadgets of Doraemon. They are mini versions of Doraemon, each with a different color. They can think and feel for themselves, and communicate with Doraemon through the "Mini-Dora" language. They act as helpers for all sorts of tasks, such as repairing the internal mechanism of Doraemon.
Nobita's family
Nobita's mother. She is usually seen scolding Nobita or sending him on errands. She actually loves her son very much but is disappointed by his academic failures
Nobita's father and laid-back salaryman. He is very considerate of Nobita, often seen arriving home from work to placate Tamako's anger towards Nobita. He has trouble quitting smoking and is self-conscious about his inability to pass the driving test. He also has a poor memory and sometimes arrives home drunk from nightly business meetings. He was once an aspiring art student.
Nobita's great-great-grandson. He is the one who sends Doraemon back to the past to look after Nobita. Sewashi first bought Doraemon in 2112 when Doraemon still had ears and his original factory paint. He is also the owner of Doraemon's sister, Dorami. He figures very prominently in the first few stories but is rarely seen later on.
Nobita's son. He is named after Nobita's father. He is a better athlete than Nobita and far more clever. In one of the stories, he did not hesitate to beat up young Nobita when young Nobita tried to stop him from running away from home. Also, he is shown as being a bully and brave enough to bully Gian's son.