Episodes 12–17 of Dies Irae released exclusively on the web.

"Bobby really does little else but work on his bike. He cleans his bike. He tunes up his bike. He rides his bike. One would call him a motorcycle otaku. His most recent achievement seems to have been getting photos of himself on a road trip printed in a motorcyclist hobby magazine. This leads to an unexpected result: a girl his age, who picked up that issue on a whim, decides to write him a letter. A long, rambling letter, but dreamily romantic just the same. Bobby admits to his sister that he's never gotten a letter from a girl before. He writes back, "I got your letter. I'm happy cause it was from a girl." The "Bobby" referred to in the title is actually 17-year-old Akihiko Nomura, an underachieving high school kid with a deep love for motorcycles. His grades are failing, and his father – traditional and strict (but who must have also at some point gave in and allowed him to have a motorcycle) is trying everything he can think of to get the kid to apply for college. His mother is so silent, she might as well not even exist. Really, his support system lies entirely in his twinkle-toed little sister, who's nosy but cheers him on in her own way."

The peace of the world is suddenly threatened by Mogool, which is located on the bottom of the sea. Helqeen, tyrannical master of the Mogoolian Empire, attempts to conquer the earth with her faithful companions Goroskie and Zan-gack. In order to frustrate their ambition, Dr. Yuri, who predicted this horrible occasion, organizes four powerful robots to form the Blocker Corps! He also gathers four members who have the super ability known as "elepath" - a talent for maneuvering gigantic robots. A fierce battle begins between our Blocker Corps and Mogool at the risk of their lives! A series of fantastic and fabulous battles unfolds. (Source: Nippon Animation)

Young detective Sonia Summers has been transferred to the outskirts of the port city Libra after stirring up trouble with her superiors. Libra is separated into two sectors—"the Upper", the center of wealth and politics, and "the Outside". The Outside is home to crime, corruption, and curious incidents involving monstrosities or youkai. Each case that Sonia works on seems to implicate the involvement of these mysterious creatures. Sonia crosses paths with three peculiar humanoid youkai — Bem, Bela and Belo — who seek to protect humans and fight against the evil youkai that terrorize them. Living as "Youkai-Ningen," they are excluded by other youkai for their human-like lifestyles, and rejected and hurt by humans when they reveal their true forms. Despite the hardships they face, these three Youkai-Ningen secretly live among humans, continuing to pursue their dreams of one day becoming human as well. [Written by MAL Rewrite]