VTubers Who Sang “海馬成長痛”

By ずっと真夜中でいいのに。. 2 talents, 2 times.

Talent	Stream	Date
UNIT B [Pre-Debut]	Kiyosumi Lyra Plays Requests in a Flower Field and Is Told by Chat She Is Not ‘Fleeting’ Jump to the song	Nov 12
Nonono Nono	Ten Singers Pass the Baton Through a Five-Hour Singing Relay Hosted by NononoNono Jump to the song	Oct 19

From the setlists of singing streams the paper reported on, as fans' timestamps and stream descriptions list them.