黄色气球
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"I've fallen in love with my neighbor's boyfriend, only to find out that they are married. Am I really a third wheel in this young couple's life?" [Original Webtoon](https://www.kuaikanmanhua.com/web/topic/1010/) **Official Translations:** [Japanese](https://jp.piccoma.com/web/product/103661), [Korean](https://series.naver.com/comic/detail.series?productNo=8310041)