The fifteenth episode of the Making Fiends web series originally aired on February 4, 2005 at the Making Fiends website. In the episode, it is Valentine's Day and Charlotte sends a card to Vendetta and, out of irritation, she creates a big heart fiend who wants everyone's hearts.
Vendetta receives a Valentine's Day card from Charlotte where she wishes her a great day. At school, Charlotte is handing out cards to her classmates when Vendetta and Grudge show up. Grudge is carrying a box with a surprise for Charlotte inside. Vendetta hands out Valentine's card to everyone and gives Charlotte one with the text "I hate you." Marion reads "Beware" and Malachi reads "Watch your back." Suddenly, a enormous heart fiend shows up which is the second part of Vendetta's surprise. The fiend starts talking to the students and then tells them to give him their hearts. The students run and the fiend chases them. After a while, the fiend is exhausted and complains that it is hard for him to reach the children when his legs are long and his arms are short. The fiend is sweating chocolate (since Vendetta made him out of that) due to the hot day, and then melts. Charlotte shows up and thanks Vendetta for "the chocolate lake" and starts singing a song. After the song, Charlotte thanks Vendetta for "the best Valentine's Day ever!"
- This was the first episode that was not entirely animated by Amy Winfrey.
- The hidden message in this episode is: The FIFTEENTH episode of Making Fiends by Amy Winfrey. Happy Valentine's Day!
- This is the first, last, and only webisode to air on Nicktoons, during a Valentine's Day marathon on Valentine's Day 2010.
- Aglaia Mortcheva as Vendetta
- Peter Merryman as Mr. Milk, Marvin, Grudge, Malachi, the Heart fiend
- Amy Winfrey as Charlotte, Marion
"New Student" • "Show and Tell" • "Vegetables" • "Scissor Fiend" • "Halloween" • "Kitty Kitty Kitty" • "Shrinking Slug" • "Birthday" • "Mrs. Minty" • "Feeding Pets"