In the year 2080, Japan has changed in many ways, yet remains familiar. Government-arranged marriages, advanced plastic surgery, and cutting-edge medical science have become an everyday part of life. Society is strict, rules are firm, and young people must follow a set path. But for Sanda Kazushige, a middle school student who is still struggling to mature, life takes a turn that no one could have predicted.
Sanda is an ordinary boy—or at least, that’s what he thought. Like most kids his age, he deals with school, friendships, and the awkwardness of growing up. However, his life completely changes when his classmate Fuyumura puts him in a dangerous situation. In that terrifying moment, something incredible happens—Sanda transforms into a large, muscular Santa Claus.
Sanda never imagined that he would become a Santa Claus unlike any other. Instead of the jolly old man people know from fairy tales, his transformation gives him immense strength, agility, and a powerful presence. His body grows, his muscles become enormous, and suddenly, he is thrown into a chaotic world filled with danger and mystery.
As he tries to understand his newfound powers, Sanda realizes that his abilities are not just for show. They allow him to fight, protect, and even save his fellow students in ways that no one else can. But why does he have this power? And why does it only activate in moments of crisis?

Sanda Plot
Sanda’s school is not what it seems. Strange events keep happening, and many students whisper about a hidden truth lurking beneath the surface. The biggest mystery of all is Ono, a classmate who was believed to be dead. But Sanda soon finds clues that suggest otherwise. Could Ono still be alive? If so, where has he gone?
As he discovers more of the school’s secrets, Sanda faces new dangers, powerful enemies, and hidden truths about his past. With every battle, he begins to understand more about his Santa-like powers and their true purpose.
Although Sanda starts as an immature middle schooler, his journey forces him to grow up quickly. Through his experiences, he learns responsibility, courage, and the meaning of true strength. He might not have been ready for this strange destiny, but now that he has it, he refuses to back down.
With his unusual transformation and unbreakable spirit, Sanda steps forward into a world of uncertainty. He fights to protect his friends, uncover the mysteries surrounding his school, and discover the truth about his own existence.
In a world where the future is shaped by technology and science, Santa Claus may just be the hero that no one expected—but exactly the one they need.

What is the release date for Sanda Chapter 104?
Sanda Chapter 104 will come out around March 25, 2025, for the following regions.
- Pacific Daylight Time [West Coast]: 8:00 AM PDT (March 25, 2025)
- Central Daylight Time [Central America and Canada]: 10:00 AM CDT (March 25, 2025)
- Eastern Daylight Time [East Coast]: 11:00 AM EDT (March 25, 2025)
- Greenwich Mediterranean Time [Britain]: 3:00 PM BST (March 25, 2025)
- Philippines Standard Time [Philippines]: 11:00 PM PST (March 25, 2025)
It will be available to read on March 26, 2025, for these regions.
- Korean Standard Time [Korea]: Midnight KST (March 26, 2025)
- Japanese Standard Time [Korea]: Midnight JST (March 26, 2025)
- Australia Eastern Daylight Time [Australia]: 02:00 AM AEDT (March 26, 2025)
Where to read Sanda Chapter 104?
Sanda Chapter 104 will be available to read on Book Walker.