2564. This #kanjipuzzle is about evolution. Start with one character, add a few strokes, and get another, then repeat. 一 -> ? -> ? -> ? -> ? -> 摩

一 -> 十 -> 木 -> 林 -> 麻 -> 摩  

一  ICHI, ITSU, hito(tsu) - one

十  JUU, tou, to - ten

木  MOKU, BOKU, ki - tree

林  RIN, hayashi - woods

麻  MA, asa - hemp, flax

摩  MA - rub, rub off, scrape