Yeongjun

Ganggeon

A loser named Kim Ji-an transferred to Sujung High School... But actually, he's the top dog of them all... and he's a girl!! Ji-an's parents, worried about their troublemaking daughter who's been in fights with boys in the past, want to send her only to an all-girls school. But Ji-an wants to attend a co-ed school.

In the end, she's allowed to go—on the condition that she'll disguise herself as a boy and keep it quiet... But it's already getting noisy!! -_-^

(Source: Naver, translated)

Kim Ji-An, the Best Man

남자일짱 김지안

Mikazuki, Lamp

A romcom about Yukari, a girl who dresses like a boy, and Shion, a boy who dresses like a girl. This story depicts the daily lives of a couple who fit each other perfectly.

(Source: Square Enix, translated)

Josou Danshi to Dansou Joshi wa Oniai Couple

女装男子と男装女子はお似合いカップル

Okinamaru, John

Chiharu-kun wa Josou wo Shitakunai!

Chiharu-kun Doesn't Want to Crossdress!

ちはるくんは女装をしたくない!

Ooima, Kanato

Usotsuki Twilight

うそつきトワイライト

Takidon

Hitomazu Koi ni Naresasete Kudasai

ひとまず恋に慣れさせてください

Hataya, Sumio

"So don't go off and start dating someone else just yet!" Hatsuho has just moved to Tokyo after getting into college and is looking forward to a dazzling college life until...she realizes that her next-door neighbor is none other than her one and only ex-boyfriend from junior high school that she had an awkward breakup with...! Even though he's a bit condescending, his good looks make him hard to hate... Hatsuho's days of being pursued by her problematic (?!) ex-boyfriend have just begun!!!

(Source: Kodansha)

Yori-kun to Yori wo Modosu Wake ni wa!

First Love, Worst Love!

頼くんとヨリを戻すわけには!

Naoki, Nana

Gokudou Reijou, Neko wo Hirou.

極道令嬢、猫を拾う。

Ebina, Shio

Ordinary high school girl Mana Shinjou may never know peace again when her childhood friend Seigi-kun comes back into her life... armed with a glock.

Seigi-kun Blowback! Kageki na Nichijou Keigoroku

正義くんブローバック! ～カゲキな日常警護録～

Inukai, Neko

Shion-kun no Oose no Mama

紫苑くんの仰せのまま

Aomi, Rui

Ai wo Chikau ni wa Hayasugiru

It's Too Early to Swear Our Love.

愛を誓うには早すぎる

Yamamoto, Momo

Mikage-kun wa Oshi ga Tsuyoi

御影くんは推しがつよい

Kamiyama, Sumu

At my high school, Haimiya-senpai is feared by all and considered too scary. This is apparently due to her intimidating appearance and blunt way of speaking... and those sparkling piercings! The long, gray wolf-cut hair! Even her Kansai accent is intimidating!!! But for some reason, this scary senpai treats me kindly...!? As "scary" turns into "cute," this scary heart-pounding senpai rom-com begins!

(Source: Square Enix, translated)

Haimiya-senpai wa Kowakute Kawaii

Haimiya Is Scary Cute

灰宮先輩は怖くてかわいい

Zenryaku Milk House

12 Manga Like Zenryaku Milk House