railing
/ˈreɪ.lɪŋ/noun
CEFR B1
Definition
A fence-like bar or rail, often along the edge of a bridge, staircase, or balcony, that people can hold onto or lean against.
The thing you grip when climbing stairs, or lean on when looking out from a bridge or balcony — exactly where Hasshi lands in this story.
Synonyms
handrail
banister
fence