This list is super duper incomplete:

Skip Beat
Tokyo crazy paradise
Koi dano Ai dano
Warau Kanoko-sama
Hannune Banhada! Season 1
Hannune Banhada! Season 2
Ai Hime ~ Ai to Himegoto
Akuma na eros
Kaichou Wa Maid-sama!
Special A
Love so Life
Unbeatable Youth
Toradora!
Gakuen alice
Desire climax
Strobe edge
Cherry Juice
Love monster
Ouran high school host club
Nodame cantabile
The one
Hadashi de Bara wo Fume
Good morning call
Love strip
Maruoka-san Chi no Kyouikugakari
Akuma de Sorou
Lovely Complex
Datte Suki Nan Damon
Midnight Secretary
Chocolate Cosmos
So bad!
Kiss/Hug
Sexy guardian
Himitsu - H na Naishobanashi
IINCHOU NO HIMEGOTO
16 Life
Black Bird
AAA
Cat Street
PRINCE TO YOBANAIDE
Cocoa!
Ren'ai Saishuuchiten
The Prince's Cactus
Koi, Hirari
Gokujou Twins
I ? HS
Ai ja Tarinai?
Sakura Rhythm
Ousama no Ura Shigoto
Tenshi ni Kiotsukero!
Kanata Kara
Oblation Love
BOKU KARA KIMI GA KIENAI
Honnou - Motto Midaretai
Kiken Junai D.N.A.
KARESHI TOSHISHITAKEI
SENTIMENTAL HONEY
ORE-SAMA OUJI
Ai Kiss - Idol Kiss
Aishite Kudasai, Sensei
Akutou Danshi Collection
Atashi no Okiniiri
Bishounen no Oheya
Dame Ijiwaru H
Gokujou Danshi to Kurashi Temasu
Houkago, Seifuku o Nui de
Idol-sama no Yoru no Okao
Junjou Bousou Honey
Karakuchi Kakumei
Kindan Wedding
Koi Gokoro Gekokujou
Love & Beast
Mayonaka wa Dame yo
Megane - Hazushitemo Ii desu ka?
Shounen wa Amaku Aisu
Sore wa, Nigai, Chocolate.
Wagamama na Kuchibiru
Scandalous
Dekiai Paradox
Cherry Juice
Megaren Megane x Koi Manga
Usagi no Koi
It's Love
Moe Kare!!
Mayonaka wa Dame yo
Gokujou Drops
Honey x honey drops
Fall In Love Like A Comic
Honnou Chocolate
THE PRINCE'S CACTUS
Heart
Pansy
RHAPSODY IN HEAVEN
S KARESHI JOUJOU
Romantic Beauty
KONO IE DE KIMI TO
Zenbu Chodai
AAA
Deep Love Virus
Otokomae! Beads
My Girl
Penguin Brothers
S.P.Y
Perfect Girl Evolution
DAKARA, ORE NI SHINA YO
Shinshi Doumei Cross
Shinigami Lovers
Koi, Hirari
Koukou Debut
Shugo Chara
17-sai Hajimete no H
Anata ni Tsunagaretai
Dokyusei H kara Hajimaru Koi
Goshimei desu!
Houkago Wedding
Kaikan Phrase
KOI-MOYOU
Hoshii no wa, Anata Dake
KOAKUMA TO MEROMERO TENGOKU
AIJIN - ITAIHODO AISHITE
MOUSOU FUUKI IIN
Koi Beta!?
MARUGOTO ORE NO MONO
SUKI HAJIMARI NO KISS
MITSUIRO DEVIL
Suki ni Natte mo Ii no?
Beautiful Name
Sweet 16
Ayakashi Koi Emaki
VIRGIN HOTEL
ROMANTIC EGOIST
R-18
Ani-Com
Motto Itte
Tropical ni Koiiro
Try Me Boy!
Barairo My Honey
LOVE STALKING!
COSPLAY ANIMAL
Charisma Doll
Senpai to Kanojo
7th Period is a Secret
Pink no Idenshi
Get Love!!
MEGANE - HAZUSHITEMO II DESU KA?
Ojousama no Himitsu
HONEY NA KOTO
Michi to no So Good
After Friend
Yoru Koi
FIRST LOVE (ARUKO)
Suki ni Naru Made Matte
Oishii Kimi List
Love & Sex
Love Ho na Kankei
venus cappricio'
Moe Moe Darling
Celeste Blue
Shinai Virus
Kono Ie de Kimi to
Otomegokoro
Honnou Chocolate
Yuuwaku - Sakaraenai Yokubou
Zettai Heiwa Daisakusen
Bitter Trap (TAKAGI Shigeyoshi)
Harem Lodge
Love Celeb
Sex=Love²
The Poisonous Flower
Yuuwaku - Sakaraenai Yokubou
Zakuro no Mi wo Abaite
shuun7
Zenbu Shiritai
Saboten no Himitsu
After Friend
Koi ni Ochita Oujisama
Boku ni Natta Watashi
Tabetai Hito
Koi ni Naru made
Kimi to Boku no Junjou Renai Jijou
Dare Nimo
Cherry Love
Darling I Love You (KONNO Risa)
Kimi wa Tomodachi (TAMURA Kotoyu)
Muyu He Benxiaozhu
Suki dake ja Wakaranai
Amairo Omoi
Love Survival
Shoujo Shounen - Go! Go! Ichigo
Money Ace X