Doukyo Shiteiru Kensei no Onna Shishou ga Kawaisugite Mainichi Shiawase desu

Determined to sharpen his skills as a swordsman, Eugene Dawson moves in with his master Liza Parsandora — a woman celebrated as the Sword Saint and arguably the most powerful fighter alive. The problem is that Liza's domestic life is a complete disaster. She's oblivious to personal boundaries, walks around in states of undress without a second thought, and has zero awareness of how her casual physical closeness affects her teenage apprentice. Eugene signed up for intense combat training, but what he actually got is a daily survival challenge of a completely different kind. The fantasy setting is there — swords, training arcs, a world that respects martial strength — but the real engine of this TV series is the gap between Liza's terrifying battlefield reputation and her endearingly clueless behavior at home. It's that classic gap moe setup where the strongest person in the room can't figure out why her student keeps turning red. The tone is lighthearted and leaning into romantic comedy territory with a heavy erotica slant, so know what you're getting into. If you liked the cohabitation awkwardness in The Girl I Saved on the Train Turned Out to Be My Childhood Friend or the playful dynamic in I'm Giving the Disgraced Noble Lady I Rescued a Crash Course in Naughtiness, this hits a similar frequency. It's based on a web manga, and honestly the premise doesn't pretend to be more than what it is — a fantasy comedy about a guy trying very hard to focus on swords while living with someone who makes that nearly impossible.