I've been reading stuff from webtoon for a min, but I never looked through canvas. From this book alone I've found so many likable bl books through the canvas tab
Why tell him you love him if you're only going to abandon him for someone else. Also, the amount of audacity it takes to ask that abandoned person to take care of your sister at your grandparents house. He is truly filth.
https://myreadingmanga.info/madarame-hiro-akuma-ni-kiss-wo-eng/
Its completed but not much is added to the story.