Tsuzuru Sakasegawa

Tsuzuru Sakasegawa is a minor character in the series.

Etymology

 * The name Tsuzuru means "compose, spell, write, bind (books)" (綴).
 * Tsuzuru's surname Sakasegawa means "inverted, reverse, opposite, wicked" (逆) (saka), "swift current, rapids" (瀬) (se) and "river, stream" (川) (kawa/gawa).