Разве Синобу подруга детства? Вроде бы, просто одноклассница.
С MAL'а:
Shinobu Miyake (三宅しのぶ)
Ataru's childhood friend and classmate. Until Lum showed up she was also Ataru’s girlfriend. She is a neat, clean, sweet, and petite young lady who can be viewed as the archetypically perfect Japanese female. Not long after Lum showed up Shinobu began to develop super-human strength. She like all female members of her class has a huge crush on Mendou. She is often part of a "foursome" consisting of Ataru, Lum, Shuutaro, and herself.
С Fandom'а:
Shinobu is Ataru Moroboshi's childhood friend and classmate at Tomobiki High School, Class 2-4. This aspect of Shinobu has even been relied upon by the others during some serious situations. A neat and clean young lady, she has horrible luck with men, usually only attracting monsters and perverts. However, towards the end of the series, her bad luck seemingly ends when she meets Inaba.