A former CIRS agent who now serves as a tactical instructor at Mihama Academy, and as a handler to the school's students. Though he looks young, he has a great deal of experience on the field, and he still has lots of friends on CIRS' current roster. Haruto radiates warmth and gentility, but this has left him an object of teasing at Mihama—the girls under his charge tend to treat him like he's just another kid. He can also be pretty tight-lipped about his past. Some of his memories are in fact rather vague, and there remain lots of gaps in his work history. Gunplay really isn't Haruto's strong suit. He doesn't often succeed in striking his target (though some people believe this apparent ineptitude to be a deliberate ploy on his part). He has little interest in food, and will usually make do with just a salad. Haruto will often issue strategic commands on the battlefield, but he rarely finds himself standing in the trenches. He uses a sword, but not one made in the Japanese fashion; it would certainly be a bit of a stretch to call it a katana.

Spoiler

He is a genetically modified clone created to serve as the next generation Thanatos System.