>>6408870Okay. MASSIVE SPOILERS.
First:There's a surprise BETA attack on the base. Takeru doesn't do well, and is bummed out at how useless he is. Marimo comes and consoles him, and he feels better. He turns around to say thank you, and see her head being eaten by a stray BETA. It is the most gruesome thing I've ever seen in game.
Then:Takeru loses his shit, almost rapes someone, and then gets the Prof. to send him back to his world. He's very PTSD at this point, and half crazy, but he starts to get better. The fact that Marimo is alive and well in this world is a help to him. Again, she consoles him. And is then brutally murdered by a stalker, her head fed in to a threshing machine.
AND THERE'S STILL MORE:That world's Yuuko explains that somehow, Takeru brought Marimo's death WITH him from the other world. There is much psudo-quantum physics talk. Takeru is now some kind of causality leak, and things are only going to get worse. People begin forgetting their memories of Takeru, including Sumika. Worse still, after losing her memories, just after Takeru had resolved to leave town to spare anyone else a horrific fate, there is an accident, and Sumika is horribly injured... possibly crippled.
LASTLY!Takeru returns to the Alternative world, after resolving to find a way to prevent what happened in the Extra world from happening.Upon returning, it is revealed that a)Alternative Yuuko knew what would happen to Extra Marimo and said nothing.b)Sumika was the brain in the jar all along, and Yuuko said nothing.and c)Yuuko let the BETA who attacked the base loose... ON PURPOSE.