訓 かか(る),かかり ・ 音 ケイ
Sino-Vietnamese: hệ
亻(person) plus 系 (a cord tying strands together): the person who holds the thread of a job. The one in charge; also connection, relation.
Stroke data: KanjiVG (CC BY-SA 3.0) — kanjivg.tagaini.net
係の人に聞いてください。 (かかりのひとにきいてください)
Please ask the person in charge.