2930. This #kanjipuzzle is about evolution. Start with one character, add a few strokes, and get another, then repeat. 一 -> ? -> ? -> ? -> ? -> 襟

一 -> 十 -> 木 -> 林 -> 禁 -> 襟

一 ICHI, ITSU, hito(tsu) - one

十 JUU, tou, to - ten

木 MOKU, BOKU, ki - tree

林 RIN, hayashi - woods

禁 KIN - prohibition

襟 KIN, eri - neck, collar, lapel