You weren't friends with the others but you all got along very well, you just had other friends. After Mari's death, Kel reached out to you in hopes it would help Hero

Kel reached out to you again when Sunny went out of the house. You were at Sunny's house, you all were about to go to the park but Kel lost his shoes. You stumbled upon the piano and started playing without realizing Sunny was behind you. When you noticed he just kept his stoic face and quiet voice

"Where's Kel?"