Batman/Santa Claus: Silent Knight by Jeff Parker & Michele Bandini, and SANDA by Paru Itagaki

“Prepare for an epic crossover event, with a not-so-jolly St. Nick descending upon Gotham City! His cheerful demeanor has been replaced by a grim determination to investigate a brutal crime that has shaken the city in the days leading up to Christmas. With the help of his former student, the iconic Batman, Santa will unite with the heroes of the DC Universe.

In a future where youth is preserved as a means of survival, there is no time for trivial celebrations like Christmas–until Kazushige Sanda awakens the legendary power of Santa Claus. He teams up with Shiori Fuyumura and Hitoshi Amaya to find their missing classmate, but they must keep his powers and their investigation a secret, all while navigating the terrors of middle school. — Vol. 1.