If you like a story with a lot of sexy situations and harem, Yuuwaku no Hanazono is a good choice.

1. Hanazono (花園); Comic Momohime 2006-05
2-3. Man-ken (MAN研); Comic Penguin Club Sanzokuban 2006-06, 07
4. Okaa-san to Issho♥ (お義母さんと一緒♥); Comic Penguin Club Sanzokuban 2006-09
6-7. Man-ken Moratorium (MAN研モラトリアム); Comic Penguin Club Sanzokuban 2006-11, 12
8. Hana ni Mizu wo♥Yarimashou (花に水を♥やりましょう); Comic Penguin Club Sanzokuban 2007-05
9. Yukata ni Kigaetara (浴衣に着替えたら); Comic Penguin Club Sanzokuban 2007-02
10. Madobe no Kimi♥ (窓辺のキミ♥); Comic Penguin Club Sanzokuban 2006-10
11. H na Musume (Hな娘); Comic Penguin Club Sanzokuban 2007-03
12. Hotaru no Hikari (ホタルノヒカリ)