"Katou Takuji created Mechanical Buddy Universe, which was a splash hit on X (formerly Twitter) before getting serialized. So, here's the rest of those social media hits in one big collection, each as viral as the last!(?) (Including) ""Her Regretful Days of Killing Time"" ""Magical Girl Akirara ☆"" ""Isekai Hero G-Shine"" ""The Tale of the E.L.F. Forest"" ""Girls That Get It"" ""Combat Support AI 'GAL'"" ""Puppet Ninja Kougetsu"" ""Suckers Death Game"" ""Poker-Face Junior"" ""Captain"" and more...! "

What is the one present a high-school girl wants from her boyfriend for her 18th birthday? What do you mean, it’s not baby twins? Next, you’ll be telling me that surprising your boyfriend with a marriage certificate isn’t a perfectly ordinary thing, either! ...Man, what did I get myself into?

My obstinate boyfriend always has a sharp tongue, and yet he pampers me. Living with a boyfriend like him fills my life to the brim with surprise and joy. A super popular rom-com about a sweet-tart boyfriend!

A young girl can't let anyone discover who she is, for her eyes and hair could ruin her mother's honor and upset the people of the kingdom… 15-year-old Ashley’s family history is nothing short of tragic. Her mother, once a noble, was framed and forced to go into exile. Soon after, she was abducted and kept in confinement. Ashley was born from that incident—bearing the same eyes and hair as her mother’s captor. Thus, from a young age, she’s forced to wear a magical headband and glasses that makes her eyes appear tiny. Her classmates mock her appearance, leaving her friendless. However, things slowly change after she meets a mysterious creature, catching the interest of the crown prince for reasons unknown. Follow the story of an unfortunate noble's daughter and her path to happiness!

Despite being called ugly and detested for his looks, Galius was the hero who lived for the sake of mankind. However, the humans betrayed Galius. So, he too, forsook the humans. Then, after experiencing the warmth of the demon kind, he decides to help the demons in building their paradise!!! By using the strongest power given to him by God, this is the ultimate isekai fantasy of a man — the Hero — who becomes the strongest, unconquerable Demon King!

Maazen, an alchemist in the twilight of his life, has poured his heart and soul into perfecting his craft. Yet, a sense of unfulfillment haunts him. In order to continue his research, he drinks an elixir of rejuvenation, which sends him into a deep slumber. Upon awakening, his finds that his youth has been restored! However, five centuries have passed, and alchemy is nowhere near what it once was. Undeterred by the negative perception of alchemists, Maazen is determined to continue his research. Armed with the long-forgotten knowledge of advanced alchemy, he navigates the challenges of this new, unfamiliar world!

Diana is the daughter of a baron. Her parents have doted on her half-sister so much, that she has grown to be extremely selfish, even stealing away Diana's fiancé! After being made a laughing stock of high society, Diana is forced to marry the brutal and ruthless Margrave Wolfgang. However, the man isn't quite what rumors make him out to be. This is the Cinderella tale of a girl surrounded by sorrow finally finding happiness!

One day, a princess was stuffed into a barrel and washed ashore an island. One other day, a young girl was unexpectedly killed, the culprit yet unidentified. Then, on another fateful day, magic and revenge began to intertwine, and a fight spanning space and time began!

Franz, a fledgling mage on the verge of graduating from magic school, is having no luck lining up a job in the White Magic field. Fearing unemployment, he decides to interview at a Black Magic company on the advice of his dorm mother, even though working with Black Magic is said to be the 3 Ds: Dangerous, Disgusting, and Dirty. Turns out? It's more like the 3 Ps: Pure, Pleasant, and Permissive!

Salaryman Kirishima Shirou (24 years old) was suddenly laid off. Drinking his sorrows away at a bar one night, he was approached by Ishimura Ai (28 years old), a mysterious and attractive woman who offered him a new job. He signed the contract then and there but discovered the next day that it was actually a marriage certificate and he’s now a full-time househusband! Is this the deal of a lifetime, or did he fall into some sort of trap?!