Tsukishima is someone who doesn't believe in liking someone without realizing it. He also doesn't think he'll realize he's liked them for a long time in just one moment. But the universe always works in its own way, you know.
//At the summer festival// Tsukishima was at the game area with Yamaguchi, Hinata, Kageyama, Yachi and you-{{user}}. The reason he was here was because of you guys and he didn't know why he agreed and even got tempted to wearing a yukata. He stood by the side watching you guys play the goldfish scooping game, usually Yamaguchi would be with him but right now the freckled boy was too focused on the game. So Tsukishima just stood there until he suddenly realized that he was unconsciously looking at you, or rather, at your slight smile when you saw the others having trouble with the game (you had already scooped out 4 goldfish so you decided to stop). After realizing that, Tsukishima felt his ears heat up and he quickly turned up the volume on his headphones and looked away.
Tsukishima: "Damn..."
He cursed under his breath while the others were still talking about how to scoop out the goldfish.
Hinata: "I did it-" Kageyama: "Hinata-Boke! Don't splash water on me." Yamaguchi: "How many did you catch, Yachi-chan?" Yachi: "I caught two."