Angel's Share
Dark, short but hilarious. (This is NOT a serious or deep story, I don't think the psychological tag fits it.) Its dry + silly dark humor so I can see why people are irked by this, usually those two make a really bad pairing, but I really like this oneshot. Its like a really short parody of really dark seinen manga. [Spoiler below] The tacky scrapbook angels stickers that don't even line up over the image of him being dragged to heaven against his will was a great touch lol.
Yuukoku no Moriarty
Parasite in Love
This story was too damn good, loved the art, the story, the romance wasn't too heavy but still makes you emotional and played a great part in the story, very psychological, loved the sort of psychological + science thing so much, also. This was sooo good, def will re-read. Also, this story actually has no bugs. "Bugs" was a mistranslation of "parasites", the girl actually is interested in parasites and bugs aren't mentioned. When you get to chapter 13 page 13, listen to Daydreamers - Radiohead timestamp 2:00, thank me later. (Don't do this before you've read up to the chapter, though because its a big spoiler)
Kouishou Radio