Letter Bee Acadamy is a short anime featuring Lag, Connor, Zazzi, Gauche, and their dingos as students and Dr. Thunderland Juniors father Dr. Thunderland as the teacher. It is not part of the Letter Bee anime and the art style is different, but the characters personalities are the same.
Overall, it's cute and informative. The episodes cover various topics and give a brief lecture about them which can be useful to understanding the story better. It explains what the spirit ambers are and what dingos are etc. Most of it can be learned from the original anime, but this kind of puts all the information together in neat categories for you and then mixes in some comedy. It's short so there really isn't much else to say about it. It's not super entertaining, but it is kind of funny in a silly way and like I said, it's informative. Since the world of Letter Bee is full of unfamiliar things, I think making a side anime that explains different things is a clever idea. There is still a lot it doesn't cover, but it's cute and it's funny and it won't take up a whole lot of your time. For the type of anime, it's pretty good.