Nega-kun and Posi-chan
Nega-kun and Posi-chan is a Manga/Manhwa/Manhua in (English/Raw) language, Comedy series, english chapters have been translated and you can read them here. You are reading Nega-kun and Posi-chan chapters on https://mangabtt.com, fastest updating comic site. The Summary is
Nega Shouya and Hoshi Sayaka are high school classmates. Nega is tremendously pessimistic, while Hoshi is optimistic, both to a fault. They also happen to be deeply in love with each other, but they completely misread each other's cues, him erring by defect, and her erring by excess. The fundamental law of magnetism states that opposites attract, and these two starkly different young lovers are not the exception!