Social Media · TREASURE Era
Social Media — New Year's Message (2019→2020)
A New Year's message from Seonghwa posted via ATEEZ's official X account: "2019 was hard work — in 2020, let's be happy and healthy with ATEEZ."
Official Sources
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Era Context
TREASURE Era · 2018 – 2019
The debut chapter. Seonghwa steps forward as a founding member of ATEEZ, establishing his stage presence and vocal identity across the group's earliest title tracks, showcases, and early international promotions.