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tbh i'm currently reading wind breaker and lookism and at least for me, some chapters are boring. The beginning of Lookism is really good, especially the first 100 chapters.
What I do recommend is Eleceed if you haven't read it already (ps. read on webtoon please instead of this site to support the author). Eleceed is an action webtoon and it really funny (no romance). I laughed soo many times at that webtoon. That webtoon is actually one I couldn't stop reading and it has 100+ chapters. The characters are great and I love everything about it. I think that webtoon is a lot better than lookism, study group, and wind breaker. Give it a try.
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read it so you can find out but here's a little insight
windbreaker's a sport and romance, i'm not fan of romance too but the romance in windbreaker blends well that its not annoying to read plus there's many hot guys and gurls haha, the art will get better as the story proceeds
lookism, i think it has almost has everything, comedy, action, thriller, psychological etc. the story doesn't "revolve around" the mc but also the "supporting" characters and there's many hot guys too haha
reco. pleasee but no romance anything but romance and can y'all tell me why lookism, study group, wind breaker, and etc. are worth to read? I've tried but Im not digging the gang gang vibe ( ̄∇ ̄")