I think the mangaka is sick or something I remember asking the same thing and was told she was sick I'm not sure if it had to do with a chronic illness or if it had something to do with her hand but I know that she can't work on the manga because of it.
She is ill, I believe there's something wrong with her hands from overworking and since the manga isn't fully part of shounen jump anymore she doesn't have to keep a tough schedule. I believe she's part of Shounen Q but it updates every four months.
This. It’s sad, but I’m just glad sensei is continuing releases, even if it’s only 4 chapters a year.
The mangaka is ill so she publish in a magazine that updates every 3 months
Does anyone know why this manga is only being updated every 3-4 months now?