Moe is a Japanese slang loanword that refers to feelings of strong affection mainly towards characters in anime, manga, and video games. Moe, however, has also gained usage to refer to feelings of affection towards any subject. Moe can be related to lust; however, pure lust without other feelings is considered outside its scope. The word Moe originated in the late 1980s and early 1990s in Japan and is of uncertain origin, although there are several theories on how it came into use.

At the anime level, thecute girls doing cute things (CGDCT) tag may also apply.

Source: Wikipedia