For what it’s worth, this series is the easiest manga I’ve encountered to date.
The jump from ABBC to BBC is three-fold:
- You encounter a larger variety of vocabulary words.
- You encounter more difficult grammar.
- The number of pages goes up.
It’s never a bad idea to try a more challenging read. The worst that can happen is you can’t match the BBC pace, so you either go slower or set the volume aside until you have more reading practice and experience.
One series I can recommend if you find you’d like an in-between to get from our current ABBC read to BBC is 「レンタルおにいちゃん」. The series has a story which instantly makes it a bit more difficult, but the difficulty also seems to steadily increase across the four volumes, making it useful to grow with.