(#日向坂と夜ふかし) What is the story behind this trend in Social Media today?
26-09-2026
The hashtag is tied to a special late-night livestream on the official Hinatazaka46 YouTube channel held on the evening of September 26. It is a birthday commemoration stream for member Takahashi Mikuni (known as “Captain”), built around the theme of staying up late together. In the stream the group looks back over her life and career by playing games, sharing stories, and reacting to old footage and anecdotes. Fans watching in real time adopted the hashtag to post reactions to the personal and often chaotic stories that surfaced, which is why it began circulating widely on social media that night.