Shiiku Gakari Rika
Sounds as though this is some nicely messed up shit! Unfortunately, the mangaka stopped writing it. Not sure whether it's just on hiatus, or whether it will forever remain unfinished. Either way, I must read it!
Tanbishugi
Wow that was really good! It was horribly fucked up and depressing, though, so I need to go cleanse myself with some fluffy, diabetes inducing crap, or maybe just something really funny. The one thing lacking in this manga was a proper h scene.
Hanazono No Kioku
This wasn't half bad, until Chris's secret was revealed and it all became sickly sweet and unrealistic - what a shame! There's one line in this that I love, though: 'I am your trigger. The bullet is within you. I will release you from him.' (ch.3, p7) - In fact, I like that whole scene a lot.
Sore Wo Ittara Oshimai Yo