姦 is a traditional Chinese hanzi, listed here under the keyword “adultery”. It is built from 女 (woman) and 奻 (奻). It appears as a component in 1 other character in this index.
On KumiJi Glyph Explorer, open the parts search and type “woman” + “奻”. 姦 is among the results, together with every other character containing the same shapes.
Open 姦 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.