2966. This #kanjipuzzle is about evolution. Start with one character, add a few strokes, and get another, then repeat. 一 -> ? -> ? -> ? -> ? -> ? -> ? -> 膚

一 -> 二 -> コ -> 口 -> 日 -> 月 -> 胃 -> 膚

一 ICHI, ITSU, hito(tsu) - one

二 NI, futa(tsu), futa - two

コ Katakana "Ko"

口 KOU, kuchi - mouth

日 NICHI, JITSU, hi, ka - sun, day

月 GETSU, GATSU, tsuki - moon, month

胃 I - stomach

膚 FU - skin