Sonny Boy is the new anime announced by Madhouse (Paprika, Redline, Summer Wars). According to the official website, the series is directed by Shingo Natsume (One-Punch Man, ACCA: 13-Territory Inspection Dept., Space Dandy).
Check out the trailer:
Therefore, the character design is by Norifumi Kugai (ACCA: 13-Territory Inspection Dept).
Synopsis:
In August, in the middle of summer vacation, third-grade elementary school student Nagara, the mysterious transfer student Nozomi, and their classmates are suddenly transported from their lives to a drifting school in an alternate dimension. They must survive using the superpowers this event has given them.
Finally, the art direction is by Mari Fujino (Dororo).