In "Cigarettes ≠ Chocolate," by Kurokiri Misao, one girl thinks that love is like chocolate, while another thinks it's more like cigarette smoke.

Various unrelated oneshots by the mangaka.

Tears of Pearl has an extra contained in volume 7 of Sayuri Hime called Summer With a Mermaid

Flower of My Heart has an extra contained in volume 7 of Sayuri Hime called Flowers in the Shade