It could be that the story, characters, or art style of the 'Can Not Love You' manga don't click with you. Sometimes, a mismatch in these elements can prevent us from loving a particular manga.
Well, sometimes it's in the little details. Like a character writing a love letter in a beautiful script or having a thought bubble with 'I love you' when they look at the person they love.
In my opinion, the first release has a certain charm and originality that makes it the best. But others might think differently depending on what they value in a manga release.
The popularity of 'I Love You' manga can be attributed to several factors. The art style is beautiful, the romance is heartfelt, and it has elements that appeal to a wide range of readers. Also, the way it handles emotions is very touching.