Ayashi no Ceres
Bitter Virgin
Chibi Vampire
Clannad
Da Capo
Da Capo Second Graduation
ef - A Fairy Tale of the Two
Fate/Stay Night
Fruits Basket
Fushigi Yuugi Genbu Kaiden
Hakoiri Devil Princess
Hayate the Combat Butler
Kanokon
KimiKiss - Various Heroines
Kure-nai
Love Hina
Mysterious Girlfriend X
Rosario+Vampire II (Read Rosario+Vampire first)
Sekirei
to-LOVE-ru
Tora Dora
Zero no Tsukaima
Kare First Love
Gakkou no Ojikan
Strange Orange
Orange Planet
Cherry Juice(i think)
Alice 19th
Absolute Boyfriend
Boku ni Natta Watshi
1/3 no Kareshi ( These are my favorite ones ive read before )