訓 せき,かか(わる) ・ 音 カン
Sino-Vietnamese: quan
門 (gate) enclosing a latch bar: a checkpoint barrier. What you must pass through to connect — hence both barrier and relation, connection.
Stroke data: KanjiVG (CC BY-SA 3.0) — kanjivg.tagaini.net
二人の関係はいいです。 (ふたりのかんけいはいいです)
The two have a good relationship.