The White Queen or The 100 Worlds. 18

Romance

Her whole life has changed in a moment when she said 'Yes'

Seasons

Comedy Drama School

A collection of yuri stories by Jin Takemiya.

Raiden-18

Action Comedy Seinen

Taking a break from her popular, brilliant, Fullmetal Alchemist; Arakawa-sensei drew up a one-chapter humorous Shounen story about a Frankenstein tournament, for mangazine GX to commerate their 5th year anniversary. (Source: Anime-Source)

Delicious Seasons

Comedy School

Xiao Chiu dreams of becoming a great Chinese chef, always has the urge to cook food when she's in the kitchen, and cuts vegetables whenever she has a knife in her hands. Her passion for cooking was rewarded when she found a well-paying job - to be Lei's personal chef for a month. But Lei is arrogant, smokes, has a bad temper... and is very picky about food. He has a sensitive stomach and will throw up if something he ate does not agree with him. He also will not eat anything that doesn't suit his taste. What a hard-to-satisfy guy! Lei just happens to be her classmate, too! Poor Xiao Chiu! Even worse, after one month, having spent day and night together, they develop tangled feelings towards each other! Xiao Chiu feels confused. In seeing the one-month deadline approaching, she decides to run away. But, if she does not cook for him, Lei may get sick again... Xiao Chiu, what are you going to do? (Source: Amazon)

18 Diary

Romance School Shoujo

1. 18diary 2. 17's Bible 3. Tadashii Hoshi no Miagekata

Durarara!! 18 Shiryaku

Action Drama Supernatural

A series of side stories that were bundled with the first press release of all 18 Blu-ray/DVD volumes of the 2nd season of the anime.

Ojamajo Doremi 18

Magic School

18-sai no Kodou

Shoujo

Another tender love story which fails to run smoothly from the master of such works Yukari Kawachi! This is a one volume "novel" type manga. Rui will be a model, and Tougo will be a painter—the two young childhood friends dream about their future. When Rui's father dies when she is 17, she goes to Tokyo, to fulfill her dreams—and meets a handsome make-up artist and...! (Source: Hidoi~! Translators)

18-sai no Himitsu

Romance School Shoujo

18-year-old Sako is tired of her loveless high school life. Her only comfort is her teacher whom she frequently visits for love advices. Now that her graduation is coming up, will she be able to seize the love that she has always wanted?

R-18 Love Report!

Romance School Shoujo

Riko Mitsumi is sixteen year-old girl who is pretty and a good student. She would be like most girls if she wasn't constantly dreaming about sex and using a pseudonym to write about it. (Source: M-U)

Nanami 18-sai Mama ni Narimashita

Yaoi

Nanami's older sister ran away from a member of a Japanese mafia; therefore, even though Nanami is only a 18-year-old boy, he has to be the mother of the baby and a captive.

18 Years Old, We Got Married

Shoujo

Life isn't that great when it's composed of a stubborn sister, single mom, and a dad that left you for someone else? If that's not enough, you meet a dwarf that's part of a famous boy band? Could this get any worse?! (Source: Within Silence)

Pure Love Seasons 1: Haru - Hajimete

Comedy Romance School

Collection of short stories. Gekou Jikoku Made Ato Go Fun by Makita Nao This is a sweet story between a humorless boy and a bubbly girl. They’ve never talked to each other, but one day they’re trapped in the same room. What will happen to them? Sakura no Kioku by Yoshinaga Yuu Her graduation ceremony is approaching. Because she wanted something else, she decided to break up with her boyfriend, but... (Source: Chibi Manga)

Pure Love Seasons II: Sakura - Haru / Deai

Romance School Shoujo

1. Senpai. [Momo Tamako] 2. [Konno Risa] 3. Fuyuzakura [Morita Fuji] 4. Ienai Futari. [Kaga Yakko] 5. Ashita, Himitsu no Door ga Hiraku [Makita Nao] 6. Manabiya no Kimi [Touda Yoshimi] 7. Kimi de, Ippai. [Satori Tae] 8. Sannengo no Hatsukoi. [Matsu Kana]