Daichi Oomori

Sin Kiske, the forbidden child of a human and a magically crafted biological weapon called a Gear, lives in a world where magic has replaced science, and scars from the Gear rebellion remain. Attending his parents’ taboo-breaking wedding, he encounters a mysterious girl with deep hatred for Gears, and their fateful meeting threatens to upend the world once again.

Two special episodes featuring the violin rock band Morfonica. The Morfonica members are excited for the concert-packed summer vacation. Meanwhile, Toko secretly plans what she calls the "Summer Morfonica Plan" with Nanami and Tsukushi.