Season 1 of Heart Series premiered on January 23, 2007.

Farel is the only son of Yuda, a successful rich businessman, and Marisa, a housewife. He's a shy 10-year-old boy who is doesn't socialize well. However, he has a crush on Rachel, a new friend he shares the same desk at his class.

Season 2 of Heart Series premiered on March 25, 2013.

Farel, Rachel, Bevan, and Endo are four good friends. Rachel likes Farel because they have been friends since childhood, but Farel doesn't realize it, and neither does Endo. Only Bevan begins to suspect Rachel's feelings for Farel.