one at a time (adverb)

1. In the world of fantasy, the characters embarked on their journey one at a time, cautiously stepping into the mystical forest.

2. The models walked down the runway in a fashion show, showcasing the latest collection one at a time.

3. In the cartoon, the characters entered the circus tent one at a time, each showing their unique talents.

4. The artist carefully applied strokes of paint onto the canvas, creating a beautiful masterpiece one at a time.