I’m the Monster Girl You Once Saved: A Middle-Aged Teacher in Another World Is Concerned About His Sudden Popularity, Vol. 1

Twenty long years after he was first summoned to another world, Washio's become nothing more than a washed-up teacher and laughingstock of the school―until he catches the eye of a bodacious beauty who just so happens to be the same girl saved back in his prime all those years ago. Now, by some strange twist of fate, Washio’s on his way to becoming the most eligible bachelor around, and his monstrous little pupils can’t get enough of him. Grab your copy of this age-gap romantic comedy to see if this teacher’s luck is about to turn around.