In the middle of an operation, Shu breaks down and runs away. He keeps getting flashes of Lost Christmas, and other disturbing hallucinations of people being consumed by the crystalline cancer. Ayase and Gai come to hear his final decision, which is to quit the Undertakers. Inori leaves his house, and he depends on Hare for companionship. His visions turn out to be precient, as Segai orchestrates an elaborate trap that corners the Undertakers and unleashes the Apocalypse Virus into the general public through sound waves, killing hundreds.
So yeah, as we expected, Ouma Shu does not take his part in Jun’s death lightly. In fact he does his best to channel Ikari Shinji, going AWOL and hiding out, held hostage by his own cowardice and self-pity. He totally takes advantage of Hare’s kindness, and even slaps Inori in the face, destroying a data chip with a new song she recorded for him. We’re talking primo little bitch here. But I don’t know what he expected was going to happen; when someone has powers such as his, they are expected to do great things. But with great things come great failures as well. Crushing failures. But one cannot sink into despair after one failure, or one defeat. Especially when you’re the underdog. You have to keep fighting.
He supposes he was trying to be like Gai; trying to win the heart of Inori; trying to be someone he wasn’t. But as Hare states unequivocally, the Shu he is now isn’t the Shu he was anyway. Running away from everyone and everything isn’t going to do him any good. His scene of eating a rice ball Inori made, alone, while crying, says it all. Yes, it sucks that Jun died. Yes, it was fucked up. But abandoning everyone when they need you most, and crawling up into a little ball of inconsolable angst, frankly sucks more. Segai and the Anti Bodies are now implimenting a fresh purge of innocent human life. The Undertakers are the only ones who stand in their way, and they’re screwed without Shu. Get your head in the game, man.