Haseul is from the Korean ha (하 — sky) + seul (슬 — pearl). (2020), PTT (Paint The Town, 2021). figure in 3rd-gen K-pop concept-album tradition. Now signed to Modhaus + ARTMS (2023-present).
Haseul does not currently appear in the US Social Security Administration's top 1,000 girls' names, so we don't publish a US rank or birth count for it. That says nothing about the name's standing elsewhere in the world — only that it sits outside the ranked US data we rely on.
In Pythagorean numerology the letters of Haseul reduce to 3, The Communicator. This is a traditional interpretive system, not a factual claim about the name.