[Sunny](https://anilist.co/character/321561/Sunny)’s childhood friend and [Hero](https://anilist.co/character/321565/Hero)'s younger brother. Though he's got an impulsive and competitive streak, Kel is an ever loyal companion. You can count on his athletic talent and his dexterity with a ball to knock down foes. He holds his pet rock Hector dearly.

After—something—changed his life four years ago, Sunny has not left his house once, living in his own reclusive bubble. Hoping for a fresh start for her son, his mother decides to move their family out of town. However, when his childhood friend Kel re-enters his life, Sunny finds himself thrust back into a world he once knew. With only three days before the move, the duo come across familiar faces as they go through town—reawakening a dark past that Sunny has tried so hard to forget.
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(Source: K Manga)