Yotsuba Kokoro (四葉 こころ) is the main heroin of the series. She is a fifth grade student who soon discovers and gets involved with the Cocotamas after meeting Luckytama who was born from her color pencil.
Kokoro is like the typical female protagonist, clumsy and does not excell at anything except playing the piano. Besides this, Kokoro is very caring about her items, because of the words of her grandmother that all things have a heart and soul.
- Luckytama - the very first Cocotama that she met. She is bound to take care of him after she was tied with the Contract Of Secrets.
Meeting The CocotamasEdit
Yotsuba (四葉) means four leaf clover
Kokoro (こころ) means heart.