Bestie those manga's are BL..
Edit : if you mean you want GL manga like that than unfortunately there is no GL manga like that but if you want Omegaverse one than there is a GL manga call "best friends"
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If you want a omegaverse gl, then "Best Friend" is good but it's nothing like love is an illusion. I haven't come across any korean ancient gl so, none like painter of the night. As for BJ alex, nope. Idk There's not enough gl, it's freaking underrated. reply