Tensai chuan desu

Ok so it was like looong time ago and my sister was reading it to me so i only have parts of it. So its a manga and a action story. I remember mc has black hair, and he's a soldier in some military thingy. everytime he dies he gets brought back to the past and he resets. He uses this to his advantage and gets sronger.there's these robot aliens thingies that are a threat to humanity and this has something to do with him going back to the past? Oh and the numbers of him dying is written on back of his hand.