It looks very much like Fujiko F. Fujio's style to me, so much so that I'm tagging it. Is there some reason you don't think it is, other than Mahou no Mako-chan not being a Fujio series?
The Lovely Mermaid
Miss Wakasagi Mako"Who is the criminal?" ChapterThe Lake's KingOopsie.Help me, mermaid teardrop.It wouldn't hurt if we all took one more good look around.It got stuck onto the bottom of Lyrica's indoor shoes.Wakasagi isn't someone who would do such a thing.Wakasagi stole my money.GumI know nothing about it!The world on land is not as good as you think. Please hurry and come back to the lake.I'm sorry, Papa, but I don't think every person is all that bad.To be continued