A locked room mystery, that can't be instantly solved by a timestop? Interesting. Sekai being frozen with a freeze spell by Otomi in order to simulate a cyro tube was an interesting way to get back to the present, but all that did was kill him lol. His plan of going to the Nether Gate was interesting, but he didn't have any time to do it anyway. So perhaps a straightforward death was the best thing to do.
Nina was so worried that he was gonna die. How sweet of her! I sure didn't Esther to impart a gift to him. Or two gifts. But now he must go. I wonder, what could have murdered Aksho?