>>281392356
Is having a spin-off the ultimate cuckoldry?
I cannot think or comprehend of anything more cucked than having a spin-off. Honestly, think about it rationally. You are writing, storyboarding, world building and serializing a unique series for at least 10 years solely so it can go and be used by another mangaka as the setting for their own story. All the hard work you put into publishing your manga - making concept arts, drawing up plots, creating dynamic character arcs, ensuring a pay-off to a central theme. All of it has one simple result: It gets picked apart by disappointed fans who only see wasted potential when it gets compared to the spin-off.
Finally finished your manga? Great. Who benefits? If you're lucky you'll get to have a more competent writer create a spin-off for it. A spin-off which will hammer home what it means to be a hero far better than you could have done, despite your manga having more than thrice as many chapters. Not just that, but they will accomplish such a feat by learning directly from your failures. The common critiques and criticisms of your characters, which you are too late in your manga's serialization to fix, but is perfect for them. Because now they get to take those characters that you spent so much painstaking time on, and simply make better versions of them for their own story.
As a writer who's series gets a spin-off, you are LITERALLY dedicating at least 10 years of your life writing a message about heroism simply for another mangaka to do it better with less chapters. It is the ULTIMATE AND FINAL cuck. It is so bad you can't help but cuck your MC in his ending as an subconscious reflection of your own writing skills. Think about it logically.