壹 is a Chinese hanzi, listed here under the keyword “number one”. It is built from 士 (scholar), 冖 (cover) and 豆 (beans). It appears as a component in 12 other characters in this index.
On KumiJi Glyph Explorer, open the parts search and type “scholar” + “cover” + “beans”. 壹 is among the results, together with every other character containing the same shapes.
Open 壹 in the interactive kanji search
to expand every part down to its smallest pieces, add your own names and mnemonic stories,
or search for other characters by their parts.