Saeb Jiew Puan Hua Jai

Saeb Jiew Puan Hua Jai (Mischievous Little Ones Stirring Hearts)
Chompoo (16 years old), a sassy teen, and Champ (8 years old), her wildly mischievous younger brother, transfer to a new school in the middle of the semester. This school is like a "theater of dreams" for many kids. Not only does it have high academic standards, but it also provides excellent support for extracurricular activities. It has practically become a talent factory, producing famous individuals in many fields—be it actors, singers, musicians, scholars, TV hosts, and many more.
Chompoo dreams of becoming a journalist, so she joins the Mass Communications Club to kick-start her goals. There, she crosses paths with the star of the International Music Club: Mew (17 years old), a handsome guitarist whom all the girls in school swoon over. However, Chompoo doesn't like Mew very much; she finds him arrogant and a show-off. To make matters worse, his band practices so loudly that the noise disrupts Chompoo's club, making it almost impossible for them to talk.
Unable to tolerate it anymore, Chompoo storms over to reprimand Mew, the president of the music club. Ever since that confrontation, the two haven't gotten along and have become constant rivals.
This bitter rivalry is completely the opposite of the relationship between their younger siblings. Champ and May (8 years old) are growing closer every single day, becoming such good friends that they hardly pay attention to their other classmates. Little Champ often begs his older sister to take him to May's house on weekends, but Chompoo always makes up excuses to avoid going because she absolutely refuses to see Mew's face. As a result, Champ and May only get to see each other at school.
Feeling that their playtime together is way too short, the two kids try to come up with a plan to mend the rift between their older siblings. They figure that if their siblings get along, they will get to spend more time playing together.
Eventually, their chaotic matchmaking schemes are set into motion, pulling both Chompoo and Mew into the mayhem. Surprisingly, some of the little kids' plans actually work, causing Chompoo and Mew to slowly grow closer. However, this development fiercely angers Bell (16 years old), a beautiful drum major who secretly has a crush on Mew, making her despise Chompoo.
Will these wildly chaotic plans allow Champ and May to get what they want? Amidst the dreams that Mew and Chompoo must fight to achieve, and the many other crazy events happening around the school, Champ and May will have to pull out their most mischievous tricks to secure a good relationship for their siblings—and, of course, more playtime for themselves!