Kasumi Yokoyama

Kasumi Yokoyama (横山 かすみ Yokoyama Kasumi) is Hina's high school teacher.

Etymology

 * The name Kasumi is written in hiragana (かすみ), which has no special meaning. However, when written in kanji (霞 or 花澄), it could possibly mean:
 * 霞 - "fog, mist, haze".
 * 花澄 - "flower, blossom" (花) (ka) and "clear, pure" (澄) (sumi).
 * Kasumi's surname Yokoyama means "width, side/beside" (横) (yoko) and "mountain, hill" (山) (yama).