Kellysinaga Patel Karina and Serina Boxart
Patel Karina and Serina
Biographical Information

February 6, 2013





Technical Information
Series type

Fanmade Vocaloid

Series no.


Chara item

Karina- pasta Serina-sandwitch


Kagamine Rin/Len

Additional Information





Kagamine Rin and Len (derived)

Patel Karina and Serina  (パテルカリーナ/瀬里奈) are 16 year olds who are both female twins and are derivatives of Kagamine Rin and Len. They also appear in the Four United Friends series created by Fanloid01. They both take the role of the deuteragonists.



Karina's outfit is slightly different than Rin's. It's kind of similar but Karina has a skirt, boots, and black hair. She has a pink design. Her number is 02.


Serina's outfit has major differences to Len's. She has bangs, black hair, a skirt, boots,and a bow instead of a tie. She has a blue design along with clips to the side of her hair. Her number is also 02.



Karina is very nice to those people who are nice to her back. People think good in her and say she's a great friend to have. She has been nice to her friends for a long time and loves to shop. She always keeps her promises. She hates Sasane An , which is mostly her arch enemy. She wants to punch him and bring him down. She is also one of the haters of him. Karina sometimes fights with Serina, but soon after they get over it.


Serina is nice like Karina but more mindful. She is mostly smart in math and is willing to learn how to draw anime. She learns from Oceana Jenifer, but Renu Mika shows her examples what it looks like. She is honest and never will break a promise like her sister. She thinks good of everyone too and people think good in her too. She has high hopes and is cute. She thinks Renu Mika as her "sister friend" along with Mika's relationship with her.

   Serina sometimes fights with Karina, Serina manages to settle the fight down. She finds Sasane sometimes annoying.

Voice configuration

Their voices has been not set yet, they are being decided. Karina's voice will be Rin 1x pitch lower and Serina's voice will be Len's voice 1x pitch higher. Serina's voice was set to be 1x pitch higher than Len's so it doesn't sound all boyish.



  Triple Baka

Triple Baka

Fanloid01 Triple Baka
Featuring Renu Mika, Patel Karina and Serina, Oceana Jenifer
Category Cover song



"You're mean!"


"You know Sasane is a jerk?"

"Just leave me alone!!!"



"Look- (so on...)


"Mika (cooing) you're sooooo cute!"

"Mika , you shouldn't of said that..."


  •  In Triple Baka there is only 3 member singing the song so the both are combined into one person so they can sing Triple Baka with Renu Mika and Oceana Jenifer. Their combined version of them has a name which is  Karseina. (which is weird)
  • Karina is 21 minutes older than Serina.


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