Summoned to Another World for a Second Time

A man was once summoned to another world and became its savior. Naturally, he grew too famous there and ended up just another ordinary isekai protagonist. But then, he fell into a "trap" and was sent back to his original world-worse, he had to restart his life as a baby. Now, this former hero-who lived as a moody high school student-gets summoned back to that same world in a twist he never saw coming.