[Comeback] Koyori returned after a month with a silky voice, only to get busted on X for staying up late during break

Koyori Hakui returns after a month off. She confesses she couldn't keep a regular schedule during vacation and got caught staying up late on X, yet her voice is surprisingly smooth. She declares she has tons of stories to share and announces a comeback hashtag, sending fans into a frenzy.

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