Sergei is one of the characters from Pop'n Music 11.
Earth, can you hear me? I have the honor of being the world's only space-exploring dog.
Sergei is a young dog who went to space to make star maps. He wants to come back to Earth to make the Doctor proud.
Sergei is a light tan dog with orange ears. He wears a blue space suit with a yellow pack. The pack has a white bone on it.
His 2P pallet gives him blue shading and his pack is colored pink.
- Sergei is based off of Laika, the first and only dog to go into space.
- Sana wrote the song Space Dog in honor of Laika.
- Sergei's birthdate is identical to Chamel's.
- Sergei's JAM and DANCE animation is a reference to the character Snoopy, who is laying upwards on his doghouse as his signature appearance.