箱庭ゆらぎ
Yuragi, a character from [[ore no nounai sentakushi ga gakuen love-comedy wo zenryoku de jama shiteiru|NouCome]], is a serial little sister. She appears to have a compulsive urge to 'collect' as many older brothers and sisters as she can, going so far as to hunt for them on her days off. Any strangers she makes acquaintance with can expect to be asked "Can I call you big brother / sister?", even if the person in question is younger than her. Despite this, she claims that Amakusa is her only 'true' big brother.
hakoniwa yuragi