奶姐
[năi jiĕ]
The term '奶姐' combines two elements: '奶奶' (nǎinai) meaning grandmother and '姐姐' (jiějie) meaning older sister. It often represents a character who acts both kind and protective like a grandmother while maintaining the lively charm of an older sister, typically indicating someone nurturing but approachable in online persona or role-play context.