The image is a kanji which is called "kokoro" or "???" in kun-reading-hiragana which means "heart" in English. Though "?" is four -strokes, It is depicted in seven watermelon seeds. Its BG is also designed in watermelon.
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Kanji-watermelon-seed free icon was designed by yamachem for icons Png and presented to its users.
yamachem
11/29/2017