Bokura No Himitsu O Kyouyuu Shiyou Ka
I really couldn't stand the first two stories, it was all so full of clichés and far-fetched "plot" points (in quotes, since the stories were so short and chronologically took so little time, there wasn't much story to tell); it was too much of a stretch how shallow their feelings must have been, to have been swayed so "deeply" in a matter of days or less. If you've been avoiding someone for years (because they broke your heart in a humiliating way), it won't take a day for you to truly fall in love with them. The latter stories weren't amazing, but they were slightly cute at the very least. Sequel to the first story: Bokura No Himitsu Wo Kaihou Shiyou Ka
Air Koi
Ringo ni Hachimitsu
Two stories: Curry Club couple (cute, continued on Kare No Barairo No Jinsei), and that End of World couple (kind of weird/creepy, a bit bittersweet).
Mukashi no Hanashi
Sono Kuchibiru, Itadakimasu
It's strange that the story with the most far fetched premise ended up being the only remotely-believable one. Also, dark hair and mole made it just a bit better :D
Akuma de Koibito
The stories were kind of cute, I liked the last one especially. They all seemed to have ended a bit too soon, I think... Maybe that was their common theme, "end before the reader gets a sense of fulfillment" :P
Ojousama No Himitsu
I really liked the first two couples, the last one was just so-so
Baby I Love You
Three stories. First one is the very, very bad sequel to Papa, I love you; as much as I think Hirasaka had all that headache coming (after being the jealous dickweed to poor, kind Keigo), it was still a horrible shock to see what a terrible personality he grew up to have. Quite disappointed. Second story was my favourite, and the only reason this got at least 2 stars, all the characters were so sweet and kind and cute. And the two mains had such an adorable interaction with each other. Third story was very short, not much development to be honest, none of the characters were that outstanding and I even had trouble recalling them at all.
Himikoi