Shounen Y summary:
From DrCoke at MangaHelpers:
In the era of space exploration. Mankind is at war against monsters of unknown origin. The battle is grim, and the future looks bleak. Amidst the chaos, mankind plays their last hand. It's time for the Knights to step into the fray and turn the tide of this war.
Halcyon Lunch summary:
[From chibi R.I.P.] Gen, a recently bankrupted and now a homeless guy, meets unusual hungry girl named Hios who can eat anything with her chopsticks.