A Newfound Above Average Life

"Fight back against these endlessly repeating days!" Sekai Kaeru is neither average nor extraordinary, but lies on a thin gray line of simply being "above average". He has above-average grades and puts in an above-average amount of effort. However, in the back of his mind, he has always wished for something more, to be more. And then, on one seemingly average day, Sekai meets a mysterious girl with horns named Ruiko, and with that, gets his chance to walk step by step into a new world - and a newfound life.