In Echo Creek Kindergarten, the new kid: Star Butterfly, a magical princess from another dimension is introduced to her class by Miss Skullnick.

She assigns her to sit at the round table in the back only occupied by the kindergarten's safe kid: Marco Diaz.

At first, Marco felt weirded out when he found out that she will be his roommate at his house but later befriends her.

Star, usually is bullied because of her weirdness and popularity by the richest girl in Echo Creek Kindergarten: Brittney Wong

During recess, Star and Marco are talking about their favorite movies and shows and their funny parts which made both of them laugh and giggle. She showed Marco a paper which had a drawing of them with the description: "Me and My BFF".

Brittney saw this and used this as the perfect time to embarrass Star

"Aww, are you flirting and showing your drawing to your boyfriend" Brittney teases

"No, we're just talking about our favorite movies and shows and their funny parts" Star said

"And the drawing says me and my BFF" Star added

Brittney knows what BFF means but she said "Yeah boyfriend forever"

The entire class in the playground giggled and Janna led the class into singing "Star and Marco sitting in a tree, K-I-S-S-I-N-G". Star and Marco both blushed and Marco covered as head and face with his hoodie and ran away while Star opened a portal to the kindergarten classroom and went in using Hekapoo's dimensional scissors which were stolen by her best friend: Pony Head.

One day, when school is about to end, Marco sees Star crying while being verbally bullied by Brittney at the playground

Marco defends Star and insults Brittney for being a spoiled, rich and bratty jerk

Brittney angrily storms off the playground, whipping her hair at the two.

Marco asks Star "You okay?"

Star wipes her tears and says "Yeah thanks to you"

She later tears a portal with Hekapoo's dimensional scissors which lead them to the hallway on the 2nd floor of the Diaz residence. Before Star goes to her bedroom, she says "Thanks Marco for earlier" before giving him a small peck on the lips before going into her bedroom and closing her door.

Marco blushed and stood there in the hallway frozen like a statue only for his trance to be broken by Janna, who came to visit and hang out with Star, passed by a surprised Marco and gave him a peck on his lips before she went into Star's bedroom and before she closed the door, she heard Marco scream in disgust and shock.