SANDA Episode 7 puts a knife in the friendship with skill. With a November 15, 2025, release date from Science SARU, Hitoshi Amaya breaks up with Kazushige Sanda in a greenhouse, leaving both characters devastated. The episode provides no comforting feelings or easy answers to this heartbreaking moment.What happens when Santa runs into children who want him dead? The episode answers this unthinkable question with the introduction of Class 10, ten children who have killed adults and now want Santa's thumbs as trophies. The episode weaponizes childhood innocence into something monstrous. Every time these children smile politely, it unveils a threat.A Friendship Breaking PointAmaya wants to break the friendship with Sanda (Image Source: Science SARU)SANDA Episode 7 follows Hitoshi Amaya as he tells Kazushige Sanda he wants to end their friendship out of concern for Sanda's well-being. His unthinkable decision results from risky situations encountered over the last few days. Sanda desperately tries to convince Amaya not to end their friendship.The emotional weight of their confrontation is the crux of Episode 7, as their friendship has been put to the test over and over again through Santa-related incidents. Amaya believes ending their friendship is the only way to save Sanda from more potential danger.The Adult Killer Class in SANDA Episode 7Fumi Namatame, the leader of Class 10 (Image Source: Science SARU)The most terrifying introduction in SANDA Episode 7 begins when Sanda meets Class 10, a group of ten children who have already murdered adults. These kids are the embodiment of everything dangerous to this episode's flip in power dynamics.The audience meets the disturbing leader of Class 10, Fumi Namatame. She appears innocuous at first, but she is a killer. Her polite disposition is a cover for her disturbing desire to hurt Santa himself.Santa's Greatest WeaknessOshibu choking Saburo Yagiuda (Image Source: Science SARU)SANDA Episode 7 exploits Santa's key character flaw. The character's innate flaw is that Santa has an inherent need to fulfill children's wishes, without any concern for the intent behind the wish, creating a weakness against children as villains. The murderous children characterize this weakness and use it to ensnare Santa in danger. When the students ask Santa for his thumbs, this is a clear indication of their sadism.Furthermore, the episode illustrates the villain, Headmaster Oshibu, beginning to heal from the scars of battle. Saburo Yagiuda provides a few praises and accolades that help diminish the pain center in Oshibu's scars. Oshibu also starts to gather the ten murderous children for more time to come. Oshibu's curiosity with the dangerous children and, now, utilization in his villainous plot suggests some larger conspiracy to be revealed.Fuyumura's Explosive RescueEpisode 7 wraps up with a killer comeback from our favorite character, Shiori Fuyumura! Fuyumura arrives just in time to save Santa from the killer class. Fuyumura didn't hold back the punches and fought children without a second thought, unlike Santa, who can't fight children at all.The animation quality stays at a high level during SANDA Episode 7. Now that we've seen seven episodes, SANDA continues building towards an elaborate world. The theme of organized child killing raises the stakes substantially.