...Maybe I'd understand this a bit more if I could read Japanese, but judging by the pictures, the only message I got was: "My life's so happy that I'mma kill myself :3"
...Is there a translation of this somewhere? I'd really want to know what's going on here.
EDIT: The translation (https://e-hentai.org/g/107147/85796f2ad7/) didn't help at all. Apparently Koakuma's falling into chronic depression over tea or something. Maybe the sequel will clear things up?
EDIT 2: OK, the sequel gave me a pretty disappointing answer. I won't spoil it, so read away.