The world has become a slaughtering ground for the Crimson Denizens, mysterious beings from a parallel universe who thrive on the life energy of humans. These merciless murderers only leave behind scant remainders of souls called "Torches," which are mere residues that will eventually be destroyed, along with the very fact of the victims' existence from the minds of the living. In an ambitious endeavor to put an end to this invisible, hungry massacre, warriors called Flame Hazes relentlessly fight these monsters. One fateful day, Yuuji Sakai ceases to be a regular high schooler—he becomes trapped in a crevice of time and is suddenly attacked by a Denizen. Coming to his rescue just in the nick of time is a nameless hunter who seems no different from an ordinary young girl except for her blazing eyes and burning crimson hair. However, before Yuuji can learn anything more about his situation, he discovers that he has already been reduced to a Torch—merely a scrap of memory waiting to be extinguished. [Written by MAL Rewrite]

Short specials included on the BD/DVD volumes of "Sekai de Ichiban Tsuyoku Naritai!"

Hagiwara Sakura and Miyazawa Elena are the leading members of a popular idol group, Sweet Diva. One day, Elena is injured by the attack of a female pro-wrestler Kazama Rio during the recording of a TV program. Sakura gets mad at Rio and gives her a dropkick. To avenge Elena, Sakura enters the female pro-wrestling matches.

Labyrinth Town is a legendary city composed of ten districts, home to witches and diviners alike. In the outermost district of this maze, many young girls begin training to join the ranks of the "Urara," a group of women known far and wide for their ability to divine the answers to the world's most difficult questions. Chiya, a wild girl raised amongst the animals in the mountains, is invited to take her rightful place as a first rank urara. By joining them, she hopes to divine the location of her long-lost mother. Chiya quickly makes three friends: studious Kon Tatsumi, aspiring witch Koume Yukimi, and reticent Nono Natsume. Armed with only their own ingenuity and a vague connection to the gods, they begin their journey in the way of the urara. [Written by MAL Rewrite]