Yukimori, Nene

Yuuichi Momose and Sumi Fujino are childhood friends who have been together since they were little. Now, they're high school classmates, but since they've reached puberty, they don't feel as close as they used to. They know each other well, but there's a sense of formality there. This is the delicate relationship between them, until one day, Sumi suddenly comes to Yuuichi's house...?

(Source: MU)

Osananananajimi

We're J-Just Childhood Friends

おさななななじみ

Ise, Maruno

A high school guy who doesn't trust girls anymore has been tricked too many times by girls who just wanted to get close to his good-looking older brother. After all that, he decides he'll never trust a girl again. But then, a pretty girl in his class suddenly starts talking to him a lot. Is she just trying to get to his brother too...? Or does she actually mean something else?

(Source: MU)

Osoraku Kanojo wa Ore no Aniki wo Neratteru

おそらくカノジョは俺の兄貴を狙ってる

Sorato, Shunsuke

One day, Yamato Satsuki saw the jagged teeth behind Aisu Kiraragi's mask. As he approached her, those teeth marked the beginning of a sharp and prickly romantic comedy.

(Source: Square Enix, translated)

Kimi no "Gizaba" ga Mitemitai.

君の「ギザ歯」が見てみたい。

Kanro, Ame

Yumeigetsu

One day, the chairs in the Literature Club have been lent out to other clubs, leaving only a single chair behind. Kido and Yuzu begin a lighthearted argument, each trying to yield the remaining seat to the other. Each wants the other to sit more than themselves. Because of their mutual kindness, neither backs down, resulting in a stalemate—until finally, Yuzu's opinion wins out, and Kido ends up sitting in the chair alone. Kido feels guilty being the only one sitting, but right then, he has a flash of inspiration.

"Since I'm the one sitting in the chair, if I become the chair and let Yuzu-senpai sit on my lap... wouldn't that work?..." he asks.

(Source: Kadokawa, translated)

Chiisakute Kawaii Bungeibu no Chiteki na Senpai wo, Hiza no Ue ni Nosetara Mainichi Suwattekuru You ni Natta

小さくて可愛い文芸部の知的な先輩を、膝の上に乗せたら毎日座ってくるようになった

Toriburi

Wakaba Osanai, a fifth-grade boy, is in love with his homeroom teacher! To become a man worthy of his teacher, he pretends to be more mature than he really is! But his childhood friend, Kai Wakanouchi, begins teasing him after he reveals his feelings for their teacher. Kai has feelings for him too... and she's trying to catch is attention by flirting!

Thus begins a "double unrequited love" romcom, featuring a boy struggling against the seductive antics of his childhood friend!

(Source: Ichijinsha, translated)

Ore no Ichizu wo Jama suru Aitsu

オレの一途を邪魔するアイツ

Shimana, Chika

Janome-san wa Hohoemitai!

Jyanome-san Wants to Smile!

蛇目さんはほほえみたい!

Aka, Chihiro

Ryou is a third-year high school student who is enjoying his otaku life to the fullest, but one girl is giving him a headache. She's Asahi-chan, a cheeky childhood friend two years younger than him who attends the same high school! Even though Asahi-chan is his junior, she always teases and teases Ryou! And yet, when someone teases her, she is at a loss for words and makes a defeated face. She is also a cute girl who has few friends, is shy, and not very honest. Today, he has to teach this cheeky Asahi-chan a lesson!

(Source: Kodansha, translated)

Namaiki Asahi-chan wo Wakarasetai

ナマイキ旭ちゃんをわからせたい

Yoru

A high school assassin fails at her job for the first time. The cause: the target was too handsome...?!

(Source: MangaDex)

Kao ga Ii kara Korosenai!

顔が良いから殺せない!

Yuuki, Kentarou

Usoda Minori no Fake Kitchen

宇曽田みのりの代用料理〈フェイクキッチン〉

Katou, Fumitaka

Super Triage

スーパートリアージ

Mano, Roka

His childhood friend, the archery girl, is a rival, an angel, and a cupid.

(Source: Kodansha, translated)

Cupid no Hatsukoi

Cupid's First Love

クピドの初恋

Yuuji, Yuuji

Touno, Kiri

Kazuma Suzuki was just your average high schooler—until his childhood friend, Rua Takayashiki, a beautiful, sharp-tongued girl who also happened to be the granddaughter of the school chairman and the nation's top idol, cut all ties with him using a line straight out of a drama.

Forced into submission for years as her so-called childhood friend, Kazuma decides it's finally time for his first-ever rebellion. He's done playing lapdog. This time, he's taking back his freedom—and aiming for a normal school life.

(Source: Square Enix, translated)

Anta to Osananajimi tte dake demo Iya nanoni! Zekkou kara Hajimaru S-kyuu Bishoujo to no Gakuen Nariagari Seikatsu

アンタと幼なじみってだけでもイヤなのに! ～絶交から始まるS級美少女との学園成り上がり生活～

Okutou-san wa Hipparidako

12 Manga Like Okutou-san wa Hipparidako