In SANDA Episode 12, we're going to see the final fight between Santa and Oshibu. Up until now, things have been incredibly exciting for viewers with shocking moments regarding Fumi, Fuyumura, and even Ono's health.SANDA Episode 12 will air on Friday, December 19, 2025, at 10:30 p.m. JST on the MBS network (or 8:30 a.m. EST/5:30 a.m. PST if you're outside JAPAN), then check your local listings. This episode also marks the end of the overall story arc that's been developing throughout season 1.Santa Claus, after getting multiple shots from Fumi (Image Source: Science SARU)You can watch SANDA Episode 12 on Amazon Prime Video in both subbed and dubbed versions, so you can enjoy it from anywhere around the world!What Can You Expect from SANDA Episode 12?In SANDA Episode 12, we will get to see Santa and Hifumi Oshibu battling it out. Santa has already gone through a lot in the previous episode, so he is really tired and has no strength left. But this fight is going to be even harder than the last one. On top of that, there are tons of other students watching the fight.Headmaster Oshibu confronting Santa (Image Source: Science SARU)Santa tells the students watching the fight exactly who he is at a crucial moment. This revelation will cause the battle to shift direction 180 degrees. With all his doubts and fears eliminated from his mind, Santa ultimately discovers his inner strength and stands up to Oshibu.With this episode, we will also learn whether or not Ono made it through her ordeal alive and what effect the announcement of Santa's identity has had on the students and the overall state of affairs. Most of the big plot threads will be tied up at the end of this episode as well.What Happened in SANDA Episode 11?Episode 11 (Flashback Attack) is filled with action and some pretty major emotional moments. The opening scene is straight-up intense, showing Fumi and Santa fighting in an arena. During that fight, Fumi sees what could have happened if she had killed Fuyumura.Fuyumura and Ono (Image Source: Science SARU)The parallels between the struggles Santa faced during his transformation and Ono are now clear. Ono is about to die! His transition has happened too fast due to his body's rapid development because of medication.No wonder Fumi was so freaked out when Santa picked her up for the end move. She couldn't deal with being hugged by another adult. To her, if someone else hugged her, it would take away her last piece of her mother. The only thing Fumi had left was her memories of her mother and the fact that she was surrounded by fire when the lanterns went out.Santa rescued Fumi from the flames while in his adult form. When Fumi saw Santa, she was confused about whether she was looking at Santa or Sanda because of how he was holding her. After that, Oshibu came up to Santa and thanked him for saving one of his students. Santa realized that the thing Fumi really wanted was not for adults to die but for an adult, him, to comfort her.Looking towards the conclusion of the first season, SANDA Episode 12 will provide the outcome of the fight between Santa and Oshibu. It will also determine the fate of students and adults being able to coexist within a society that has endured much hardship.