Saw the afterlife bridge

However, Nakashima Natsumi doesn't share Choi Minho's sentiments. 

"I want to find Sei and punish him." She stands up and straightens her back. "Because of him, my sister suffered a lot. Sayuri and my father are dead."

Choi Minho looks at her. "How are you going to punish him then? Do you even know what a devil is? It can't be killed. There are ranks among the devils too. Sei could fool even the council. He should be a high ranked devil."

"So, we let him go?" She eyes him with disbelief. "I thought that you loved Wakana."

He purses his lips. What does she know? Choi Minho blocks her loud thoughts. He's an immortal who hasn't made a decision which path he would take. There's a path of darkness. Heaven is another path. Darkness is not entirely evil. Heaven isn't entirely good. He just wants to remain as a human and wait for her to return.

Guardians come back. She might go to another world but she would come back here someday.