It's Thor from Shuumatsu no Valkyrie. I've just binged 7 chapters now, heading to the 8th. It's great. And Thor's a mean mofo.
@Light D Lamperouge so you are on the RoR train too. ( ͡° ͜ʖ ͡°) All according to keikaku. ( ͡◉ ͜ʖ ͡◉)