Sometimes, feelings hide in your heart. They shrink, become scary, embarrassing, and remain unspoken... But "feeling" is not wrong. Shizuku-chan cried and stayed silent... But the clouds in the sky were always by her side. And when she took a deep breath again. Her feelings changed into colors. The round ball is Shizuku-chan's precious feelings. She doesn't need to hide them anymore. Even if you're silent, they're still being conveyed.