Nothing worries Satomi Oka more than the upcoming final choir competition of his middle school career—right up until he is accosted by a stranger from the shadows who demands, “Let’s go karaoke!” As a yakuza, Kyouji Narita doesn’t scare easily, but a terrifying prospect has driven him to seek Satomi’s help. The boss is holding a karaoke contest, with the loser forced to get a tattoo to be selected and torturously applied by the boss himself! Oka has been to many vocal rehearsals over the years, but never one-on-one karaoke sessions with a gangster!!(Source: Yen Press)

A squid-like creature, known as a Happian, leaves his home planet with the desire to spread happiness across the universe. He lands on Earth, but quickly finds himself in danger of captivity by its inhabitants. Fortunately, he is found by an unsmiling little girl named Shizuka Kuze, who feeds him and names him Takopii. Feeling indebted, Takopii decides to do everything in his power to bring a smile to her face.The task is easier said than done, however. Shizuka is bullied by her classmates, she does not have a father, and her mother is never home—though the gravity of these issues flies over the naive Takopii’s head. Even so, Shizuka does have one source of happiness: her dog Chappy. The connection Shizuka and Chappy share only increases Takopii’s desire to make the girl smile.While Takopii’s attempts to lift Shizuka’s spirits lead to unintended consequences, he is determined to take things into his own tentacles, test his understanding of human beings, and achieve his goal of spreading happiness.[Written by MAL Rewrite]

Violent misfortunes frequently occur around 16-year-old Yuuta Okkotsu, a timid victim of high school bullying. Yuuta is saddled with a monstrous curse, a power that dishes out brutal revenge against his bullies. Rika Orimoto, Yuuta’s curse, is a shadow from his tragic childhood and a potentially lethal threat to anyone who dares wrong him.Yuuta’s unique situation catches the attention of Satoru Gojou, a powerful sorcerer who teaches at Tokyo Prefectural Jujutsu High School. Gojou sees immense potential in Yuuta, and he hopes to help the boy channel his deadly burden into a force for good. Yet Yuuta struggles to find his place among his talented classmates: the selectively mute Toge Inumaki, weapons expert Maki Zenin, and Panda.Yuuta clumsily utilizes Rika on missions with the other first-year students, but the grisly aftermath of Rika’s tremendous displays of power draws the interest of the calculating curse user Suguru Getou. As Getou strives to claim Rika’s strength and use it to eliminate all non-jujutsu users from the world, Yuuta fights alongside his friends to stop the genocidal plot.[Written by MAL Rewrite]

The devastation of the Mugen Train incident still weighs heavily on the members of the Demon Slayer Corps. Despite being given time to recover, life must go on, as the wicked never sleep: a vicious demon is terrorizing the alluring women of the Yoshiwara Entertainment District. The Sound Hashira, Tengen Uzui, and his three wives are on the case. However, when he soon loses contact with his spouses, Tengen fears the worst and enlists the help of Tanjirou Kamado, Zenitsu Agatsuma, and Inosuke Hashibira to infiltrate the district’s most prominent houses and locate the depraved Upper Rank Demon.[Written by MAL Rewrite]

Idly indulging in baseless paranormal activities with the Occult Club, high schooler Yuuji Itadori spends his days at either the clubroom or the hospital, where he visits his bedridden grandfather. However, this leisurely lifestyle soon takes a turn for the strange when he unknowingly encounters a cursed item. Triggering a chain of supernatural occurrences, Yuuji finds himself suddenly thrust into the world of Curses—dreadful beings formed from human malice and negativity—after swallowing the said item, revealed to be a finger belonging to the demon Sukuna Ryoumen, the King of Curses.Yuuji experiences first-hand the threat these Curses pose to society as he discovers his own newfound powers. Introduced to the Tokyo Prefectural Jujutsu High School, he begins to walk down a path from which he cannot return—the path of a Jujutsu sorcerer.[Written by MAL Rewrite]

Ever since the death of his father, the burden of supporting the family has fallen upon Tanjirou Kamado’s shoulders. Though living impoverished on a remote mountain, the Kamado family are able to enjoy a relatively peaceful and happy life. One day, Tanjirou decides to go down to the local village to make a little money selling charcoal. On his way back, night falls, forcing Tanjirou to take shelter in the house of a strange man, who warns him of the existence of flesh-eating demons that lurk in the woods at night.When he finally arrives back home the next day, he is met with a horrifying sight—his whole family has been slaughtered. Worse still, the sole survivor is his sister Nezuko, who has been turned into a bloodthirsty demon. Consumed by rage and hatred, Tanjirou swears to avenge his family and stay by his only remaining sibling. Alongside the mysterious group calling themselves the Demon Slayer Corps, Tanjirou will do whatever it takes to slay the demons and protect the remnants of his beloved sister’s humanity.[Written by MAL Rewrite]

Part two of Dr. Stone: Science Future.