I'm a Noble on the Brink of Ruin, So I Might as Well Try Mastering Magic

Here's another isekai I am part way through (it's still releasing) called I'm a Noble on the Brink of Ruin, So I Might as Well Try Mastering Magic. Another super long name.

Looking at that image, it looks like it might turn into a harem, but there's not a lot of evidence of that so far at least, thank goodness. Liam is isekai'd into a new world while enjoying a drink after work (we're told this; don't think we even see him)--he just appears in the middle of his baby sister's birthday party in the body of a 12 year old boy that's the fifth (I think) son of a nobleman. 

In this world, if you don't do something grand that helps the nation, you can be returned to commoner status after 3 generations and this is that generation for his family. Consequently, his oldest brother and father are very anxious. The dad wanted a girl to hopefully marry off to another family to help keep them relevant. Liam's next oldest brother is marrying into another noble family, partly to get out of the way of the oldest brother. The oldest is...desperate and kinda stupid.

Anyway, as the title gives you a clue, Liam starts to learn magic and discovers he has a talent for it (of course). He also meets some mysterious guy that gives him a magic ring that helps him learn and store spells. The mysterious guy is obviously well connected as some high up guy recognises the ring later, though it seemed like he was in hiding from Liam's dad and wasn't supposed to be on the land? Really hasn't been explained yet.

More "anyway" -- Liam, by episode 4, has mastered all kinds of magic, "absorbed" a dragon that everyone originally thought was evil but wasn't, been made a knight and then promoted to baron (so is kinda higher up than his dad now), saved a bunch of pixies and turned them into elves (?), and has started a new "nation" that was in a hidden valley kind of thing but can float and is apparently some promised sanctuary according to the princess. Whew. That's a lot.

So, so far I'd say the show seems decent, if typical. I'm guessing there will be 12 episodes and given how much was packed into the first 4, who knows what will happen. Will update after I finish!

Edit: Episode 5: He takes over a tribe of wolfmen that he turns into werewolves-ish (and one becomes a waifu-werewolf....sigh), gets engaged to the princess (with her permission, at least, though she also appears to be at least 5 years older than him...but I just googled it, and she's supposed to be 16, though she looks more like early 20s), and discovers super powerful armour.