よつばと! 1

I started this series because I see it's one of the most commonly recommended first manga series to read in japanese. There is good reason behind it, it's a really cute, entertaining story that uses fairly limited vocab that represent every day life.

A word of caution though to learners is many of the children in the story use little to no kanji in their speech. If you rely heavily on kanji like me then you'll struggle parsing a lot of their speech.