Episode 13 of Kamisama no Inai Nichiyoubi, included in the final Blu-ray/DVD volume of the series. This bonus episode is separated into three parts. In the first part, taking place before the characters reach Ostia, Ai and the others visit a hot spring. In the second part, Alice remembers the times he killed his classmates and encounters Hampnie Hambart. A battle ensues. In the third and final part, Hampnie dreams of when he first met Hana and is then woken up by Ai. (Source: Wikipedia)

Two years before the start of the series, Roberto "Coach B" Sebastián, Sr.'s son, Roberto "Basti" Sebastián, Jr., was killed by a gunman from a large syndicate which brought down the Barangay 143's Powerhouse team and led to today's events. Bren Park, a player for a Korean basketball team, had lost recently his family in a tragic accident during a snowstorm in South Korea that led him to quit basketball. However, following a revelation that he was his mother's child to a Filipino man, Bren went to Manila to search for him. Along the way, he joined a local basketball team, the Puzakals of Barangay 143.

The mysterious, yellow-masked Storyteller is a man whose true name and origin are both unknown. He appears at dusk where children gather and recites sinister tales based on Japanese urban legends, to which his young audience eerily intakes. However, the Storyteller is no ordinary teller of tales. He incorporates a kamishibai, a traditional paper-scrolling device, to add visuals to his already demented narration. A series of short horror stories, Yami Shibai begins with a bachelor who, after moving into a new apartment, immediately starts sensing a malevolent glare being pressed into him. A single talisman rests on his ceiling, but he has no way of knowing it is one of the few safeguards that separate him from a bottomless pit of suffering. Each story is more terrifying, more appalling, and more sickening than the last as the Storyteller's audience find themselves being sucked into the vicious world of his words.

Second part of Hero Mask.