Magical Girl Lyrical Nanoha StrikerS

By middle school, Nanoha Takamachi had already saved the world. Now she's 19, working full-time as a military mage for an interdimensional peacekeeping agency, and about to rescue a young girl from a burning airport, which kicks off a chain of events that changes both their lives. StrikerS is the third entry in the Nanoha franchise, set a decade after the previous series, and it takes the 'magical girl grows up' concept completely seriously. The original trio: Nanoha, Fate, and Hayate, are veterans now, dealing with rank structures, bureau politics, and dangerous magical artifacts called Lost Logia. They form an elite squad and start training a new generation of recruits, which is where most of the character drama lives. The show mixes military procedural energy with genuinely emotional character work, and the power system has more mechanical depth than most shounen series. If you've watched Fate/kaleid liner Prisma Illya and wanted something with more worldbuilding weight behind it, this scratches that itch. Or if Cardcaptor Sakura was your entry point to the genre and you're curious where it can go tonally when aimed at older viewers, StrikerS is a good answer. It's a 26-episode TV series from 2007, so the pacing is deliberate: the early episodes are almost entirely setup, but the foundation it builds pays off across the run.