This song talks about a shy girl struggling to confess her feelings to her childhood friend. The song begins by establishing the setting, describing a quiet summer night, as is implied by the cicadas' singing. As she looks at the sunset, the girl notices her feelings for her friend faintly resurface. However, after the sun sets, these ones return more intensely than before, dragging her to the verge of tears. That night, the girl and the childhood friend she fell for meet to assist at the summer festival, but again she is incapable of expressing her feelings. Later, when they go to watch the fireworks she finally gathers enough courage to confess. Panicked by what she did, the girl tries to flee, only to be stopped by the boy who hugs her tightly at the same time as the final firework explodes, filling the whole sky.