Hey! Thanks for Recommending Birdy the Mighty: Decode for Secret Santa. I did complete S1 and while it wasn't the greatest show ever I did like some refreshing aspects like the bond between Birdy and Tsutomu. They didn't just make it a romantic relationship. Also the idea of showing a lot of Birdy's planet/world which is quite unusual. But honestly the plot wasn't the greatest, it kind of dragged on also the relationship btw Nakasugi and Tsutomu wasn't very fleshed out that might contribute to more of why I didn't care for plot as much.
Saying all that I am glad you recommended me something I hadn't ever heard of, It was great jumping head first into the show. I definitely enjoyed the experience. ^^