Episode 0 of Saenai Heroine no Sodatekata ♭ which premiered on Amazon Prime. The team has come to the pool of a luxury hotel to do research for a swimsuit event for their game. As always, Utaha and Eriri are fighting, Michiru is doing her own thing, and of course Megumi is being aloof. Episode zero is here to bring you the swimsuit episode fans have been waiting for! (Source: Amazon)

As the Fifth Holy Grail War reaches its conclusion, Saber repeats her final duty from the previous war in order to end the vicious cycle once and for all. With the decisive blow draining her remaining mana reserves, Saber's body begins to dissipate. She utters a tearful farewell—but Rin Toosaka reaches out to her at the last moment. The future has been changed, and a new beginning awaits. [Written by MAL Rewrite]

Fleeing from the consequences of his decision at the Hell's Gate, superpowered Contractor Hei and his companion Yin take refuge in a quiet inn, adopting the guise of a married couple in order to not draw suspicion. In an attempt to recover from recent events, Hei befriends the inn's other guests. He discovers that one of them is a fellow Contractor tasked with killing him. Their resulting encounter spells disaster for both Hei and Yin, who are forced to fight for their lives and grapple with the emotional wounds sustained in their previous life together. [Written by MAL Rewrite]

Koyomi Araragi is studying hard in preparation for his college entrance exams when he begins to notice something very strange: his reflection no longer appears in a mirror, a characteristic of a true vampire. Worried about the state of his body, he enlists the help of the human-like doll Yotsugi Ononoki and her master Yozuru Kagenui, an immortal oddity specialist. Quickly realizing what is wrong with him, Yozuru gives him two choices: either abstain from using the vampiric abilities he received from Shinobu Oshino, or lose his humanity forever. [Written by MAL Rewrite]