Utsumi smirked because he's planning to emotionally and psychological destroy Akamine by getting closer to him. When Akamine opened up to him, he found a chance to exploit Akamine's mental and emotional state.
I don't think he faked the rape as some claimed, all because of what happened when he did get back at Akamine. "I'm the one who feels like crying." Despite getting back at Akamine, he should feel better by now as he finally gave Akamine what he deserved. However, that's what he believed, but life's not that easy.
He expected for his pain and anger to go away, but it did the opposite - he felt like shit for raping Akamine and he doesn't know why. Hence the "crying" part because he, himself, doesn't know why it didn't go away when it should've. He finally got revenge, and yet the pain is still there.
When Utsumi was saved by Akamine, he said, "Even though you're the same as those bastards! Even though you did the same thing!" Utsumi's view of Akamine shattered as on the one hand, Akamine's this vile, disgusting excuse of a human being. But now, when Akamine helped him out, it shattered. He's lost.
But six years of pain, anger and suffering doesn't disappear overnight, so when Akamine opened up to him, he took the chance.
Utsumi smirked because he's planning to emotionally and psychological destroy Akamine by getting closer to him. When Akamine opened up to him, he found a chance to exploit Akamine's mental and emotional state.
I don't think he faked the rape as some claimed, all because of what happened when he did get back at Akamine. "I'm the one who feels like crying." Despite getting back at Akamine, he should feel better by now as he finally gave Akamine what he deserved. However, that's what he believed, but life's not that easy.
He expected for his pain and anger to go away, but it did the opposite - he felt like shit for raping Akamine and he doesn't know why. Hence the "crying" part because he, himself, doesn't know why it didn't go away when it should've. He finally got revenge, and yet the pain is still there.
When Utsumi was saved by Akamine, he said, "Even though you're the same as those bastards! Even though you did the same thing!" Utsumi's view of Akamine shattered as on the one hand, Akamine's this vile, disgusting excuse of a human being. But now, when Akamine helped him out, it shattered. He's lost.
But six years of pain, anger and suffering doesn't disappear overnight, so when Akamine opened up to him, he took the chance.
But that's just a theory