Tomisawa, Hiroki

Hidano, Kentarou

Googugu is a mysterious new app that can search for information, but unlike other popular search engines, Googugu can search through all information that exists on Earth, including confidential government documents and even people's journal entries. With great power comes great limitations though, as Googugu can only be used on a tiny device known as a "super smartphone."

First-year high school student Kyuu "Q" Sagurada happens to be an owner of one such device by chance. Though he is academically brilliant, Q strives to barely pass all of his courses by turning every test into a game, much to the ire of his childhood friend Yuika Noumaru. His behavior stems back to an incident seven years prior, when his younger brother, Shuu, disappeared without a trace. Despite the police's best efforts, they were never able to solve the case.

Realizing that his new smartphone has the potential to crack his younger brother's cold case, he attempts to search for it, only to see that any relevant information is locked. Now, Q must utilize the super smartphone more and collect "Googugu Points" in order to access the information. But as he continues to use the device, he realizes that he may not be the only super smartphone user out there, and the others could be manipulating the world as he knows it.

[Written by MAL Rewrite]

Sugoi Smartphone

Super Smartphone

すごいスマホ

NISIO, ISIN

Demizu, Posuka

The spin-off stars an adult B.T., who is employed at Dinosaur Hotel in Las Vegas as a magician. After watching B.T.'s magic show, Koichi Mugikari learns that B.T. is actually employed for helping the hotel's casino handle gamblers who have unusual winning streaks. 

(Source: JoJo Wiki)

Makouseinen B.T.: "Busou Smoker" Jiken

Cool Shock Guy B.T.

魔好青年ビーティー「武装スモーカー」事件

Hitsujiyama, Juuichirou

Matsutani, Yuuta

Middle schooler Koichi Mugikari befriends the "Wicked Boy" B.T. after the latter saves him from a pair of extortionists. The two end up becoming involved in an incident with an arsonist live streamer.

(Source: MangaDex)

Mashounen B.T.

Cool Shock B.T.

魔少年ビーティー

Kotoyama

A long-awaited bonus volume that provides a look into the future of the characters after the conclusion of the beloved manga series. Kou embarks on a life of vampire hunting!

(Source: VIZ Media)

Yofukashi no Uta: Rakuen-hen

Yofukashi no Uta: The Paradise Arc

よふかしのうた－楽園編－

Asagiri, Kafka

Hoshikawa, Shiwasu

It's been roughly one year since Chuuya Nakahara joined the Port Mafia, and he's got his sights set on an executive position. But as he makes plans to move up, a man by the name of Paul Verlaine—claiming to be his younger brother—appears and vows to assassinate everyone he cares about! Now, Chuuya must team up with Adam, a European A.I. investigator, to stop this lunatic before the storm swallows Yokohama once again...

(Source: Yen Press)

Bungou Stray Dogs: Stormbringer

文豪ストレイドッグス STORM BRINGER

Koichi and B.T. are back again... This time, their retirement plans include a voyage to the stars! But how will they overcome the puzzle their old nemesis has left for them inside their spaceship...?

Maroushinshi B.T.: "Baa Senior ni Yoroshiku" Jiken

Cool Shock Old B.T.

魔老紳士ビーティー 「婆シニアによろしく」事件

Jaki, Rafał

MACHINE GAMU

In a world where peoples' names grant them superhuman powers... Two agents from the Nordic Naming Bureau (NNB), an agency specialized in investigating crimes committed by "Namers," handle the case of a man and his missing wife and son. Things take a turn, however, when the duo come face to face with the man, who wishes to give his son the same name as himself...

(Source: MANGA Plus)

No\Name

NO＼NAME

Tsutsui, Taishi

Famous detective Syd Craft. He's solved the toughest cases and he's adored by the public, but even he has a major problem!

(Source: MANGA Plus)

Included one-shot:
Volume 3: Mangaka no Neko de Aru.
Volume 4: Bokutachi wa Benkyou ga Dekinai Tokubetsu-hen, Yosame Hakuro wa Korosenai

Syd Craft no Saishuu Suiri

Syd Craft: Love Is a Mystery

シド・クラフトの最終推理

Usazaki, Shiro

Kida, Saori

Kimi to Aoi Yoru no

キミと青いヨルの

Gyokuto

Mizoguchi, Ryuuichirou

Hangyaku no Soul Eater: Tamashii no Hoshokusha to Shoujo-tachi

The Revenge of the Soul Eater

反逆のソウルイーター -魂の捕食者と少女たち-

Tsukahara, Shigeyoshi

SanaTsu

This is a story that weaves together people and a town. A coal mining town crowded with small-scale excavators, commonly known as the "Hakoniwa." In this town that changes daily like a labyrinth, there's a girl named Kagari who runs a mapmaking business and a boy named Yuya who dreams of breaking free from the "Hakoniwa." Eventually, the two, along with the unique residents of the town, find themselves confronting a conspiracy that shakes the entire town. The fate of the" Hakoniwa" depends on Kagari's drawings on the map.

(Source: ANN)

Kuramerukagari

クラメルカガリ

Umiharu

The manga is set in a certain "eastern country," where the commerce and use of an illegal drug named UDL has spread widely following the end of a devastatingly long war. Here, a boy named Ibuki is searching for his long-lost mother. One day, he meets a mysterious girl named Mylphy, and Ibuki's search for his mother will begin to take on a surprising twist.

(Source: ANN)

Bloodict

ブラディクト

Kaiketsu Jouki Tanteidan

12 Manga Like Kaiketsu Jouki Tanteidan