Have you watched "My Grandfather Fought Vampires and Now I Have to Defeat Super Vampires with My Breathing!" ? It's a sequel of "My Childhood Friend Turned Into a Vampire With This Stone Mask and Now I Have to Defeat Him with My Breathing!". I heard it's suffocatingly moe.
Oh right, the two last volumes of the manga haven't been translated either...
Spoiler for What I'd have done as a character in Jormungand:
Basically Koko's whole plan to paralyze everyone from warring by superior technology won't manifest, but she can use that superior technology as a bargain chip in conducting a long term political process for modifying geopolitical map into something less conducive for the great powers hegemonical projection. That's where I'll bet Jormungand on, instead of a single collosal opening fireworks, to lessen wars, not eliminate them, which is well, impossible. I hope I was there to knock this sense into Koko's head
But saying that would mean jumping into a fruity whirlpool of serious business.