Nagase, Sarasa

Kamikou, Chizu

When it comes to light that Octavia de Reine isn't a legitimate member of the noble House of Reine, she swiftly finds herself disowned. At first she takes this in stride...until her power hungry father and ex-suitor start vying for the house full of mysterious heirlooms that her doting grandmother left her. Little does her family know that she's destined to inherit an even greater legacy. Olivia hopes to follow in Granny's footsteps and become a famous detective, after all! She'll face off against young noblemen, phantom thieves, and magical items corrupted by demonic forces. Oh, and one vengeful angel queen. Moreover, who's this suspiciously young marquis that seems so smitten with her...?

(Source: J-Novel Club)

Kandou sareta node Tanteiya Hajimemasu! Jitsu wa Boukoku no Joou da nante Naisho desu

勘当されたので探偵屋はじめます!実は亡国の女王だなんて内緒です

Noramame

One day, private detective Kanako Udagawa receives a request from client Yuiko Shinonome to conduct surveillance on her fiancé. But when Detective Udagawa drops by the fortune-teller that the fiancé's been visiting on the sly, she encounters a boundlessly bubbly woman called Sakura! See the slapstick suspense unfold with this pair of polar opposites!

(Source: MANGA Plus)

Tantei to Uranaishi

The Detective & the Fortune Teller

探偵と占い師

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

Moriguchi, Akira

Matsura is a calm, composed high school boy who's always lived his life putting up a front. He's good at reading people and can easily see through their true nature, but for unknown reasons, he's constantly approached by Kyuuragi—a beautiful girl with pigtails who's part of the popular group! Whether it's intentional or not, her playful and cunning actions keep throwing him off, and before he knows it, Matsura is yelling, "Stop! I'm falling for you!"

(Source: MANGA Plus)

Yamero Suki ni Natteshimau

Stop! I'm Falling for You!

やめろ好きになってしまう

Zurikishi

At 24, Reina Izutsu has recently become the new president of Izutsu Printing after taking over for her late father. Young and not quite experienced, Reina wants to do her best but unfortunately comes across as harsh with her employees. Stressed and feeling lost, Reina spends an evening drowning her sorrows in beer at an empty park. She rants and vents out loud to the starry sky that she wants to give up and quit being president, just letting off steam. Except, she fails to realize that her subordinate, 37-year-old section chief Kenichi Ishizumi, heard her drunken ramblings! But rather than use this against her, Kenichi finds himself charmed by the young woman. He vows then and there to support her and help her find her way as company president, no matter what!

(Source: Seven Seas Entertainment)

Shachou to Sake to Hoshi

Me and the Prez, Drinking Under the Stars

社長と酒と星

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～

Itou, Ryou

LeonarD

Mob Shisai dakedo, Kono Sekai ga Otome Game dato Kizuita node Heroine wo Ikusei shimasu

モブ司祭だけど、この世界が乙女ゲームだと気づいたのでヒロインを育成します

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

Mikeyana

Tomodachinchi no Neechan ga Kowakute Ii Hito

My Friend's Sister Is Scary but Nice

友達んちの姉ちゃんが怖くていい人

Konbu, Wakame

Okabe vowed to focus on his studies in high school, but for whatever reason, the girls around him keep sending him mixed signals…

(Source: MANGA Plus)

Watashi no Koto Suki ja Nakatta no ka yo!?

So You Weren't into Me?!

私のこと好きじゃなかったのかよ!?

Shinonome

Bunny Night Treatment

バニーナイト・トリートメント

Akatsuki, Kou

The Demon King wields the most powerful ability of all: the power to read other people's minds. With that gift, he has risen to the top of the demons and laid waste to humanity. But he can't shake the thought that the more he reads everyone's minds, the less he can trust anyone.

And so the Demon King lives a life of solitude, until one day the legendary female hero appears before him. It's the start of a pitched battle for the fate of humans and demons... Or so he thought.

"The real Demon King! I've been dying to meet you...! You're so cool!!" Or something like that...

(Source: Kadokawa, translated)

Yuusha wa Maou ga Suki Rashii

勇者は魔王が好きらしい

Arcana

Manga Like Arcana