只 is a Japanese kanji written with 5 strokes, listed here under the keyword “only”. It is built from 口 (mouth) and 八 (eight). In Remembering the Kanji by James W. Heisig it is frame 55.
On KumiJi Glyph Explorer, open the parts search and type “mouth” + “eight”. 只 is among the results, together with every other character containing the same shapes.
Open 只 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.