Yozora Mel, Natsuiro Matsuri, Shirakami Fubuki, Aki Rosenthal, and Akai Haato are female Japanese Virtual YouTubers associated with hololive, debuting as part of it's first generation of VTubers.
Mel's a vampire, not into blood.
Matsuri's energetic, pretends to be seiso but is an unseiso lewd girl. sweet, serious
Fubuki's a fox girl and is the Queen of Memes.
Akirose's trademark pigtails float due to some sort of powers.
Haato's known by her chaotic alter-ego, connection between Haato & Haachama