Special bundled with the Blu-ray/DVD volume of Grisaia no Meikyuu.

Saeki Koushirou works as a wedding planner, but his own love life is in shambles. His background makes it difficult for him to commit himself wholeheartedly to love. The child of a divorced couple, he lives with his father. He has a mother and a sister, but he has not seen them in years. After being dumped by his girlfriend, a chance encounter with a female high school student shakes Koushirou's calm and awakens new feelings in him—but he learns that the girl is in fact his sister, who will now be staying with his father and him. Yet, the feelings in Koushirou's heart... (Source: ANN)

A new tournament, Squad Jam 3, has been announced in the popular VR game Gun Gale Online. This time, Pitohui, one of the best performers in the previous competition, offers to team up with Karen Kohiruimaki, better known in-game as LLENN, the "Pink Devil." Despite her initial reluctance, Karen agrees to join Pitohui's team, LPFM, since she looks forward to facing SHINC, her rivals from the previous Squad Jam. The newly formed LPFM enrolls in the tournament and is quickly recognized as the favorite to win due to the caliber of its players. As they strive to come out on top and win Squad Jam 3, LLENN, Pitohui, and the other members of LPFM battle against other competitors and tackle unexpected challenges.

As the Holy Empire rises to power, the neighboring lands begin to gradually fall under its control. The Empire's conquest eventually reaches the small island of Erin, home to the Gael tribe. There, a priestess named Riannon is kidnapped to be offered as a living sacrifice to the demon king Arawn, a malevolent being rumored to have caused untold destruction in the past. Riannon's brother, First Warrior Arthur, rescues her, when Arawn suddenly materializes before them as a handsome grey-haired man. Hiding his true identity and remaining enigmatic, Arawn pledges his power and leadership to the tribe's cause and joins Arthur, Riannon, and their merry band of friends—including a talented swordsman, an agile hunter, and a group of ecstatic pixies—as they fight back against the Empire, while uncovering the dark secrets of the land along the way. [Written by MAL Rewrite]