With the truth not necessarily being found on the first play-through, Jisei: The First Case HD definitely merits a second one to learn about more of the secrets in detail, which do not appear to be revealed all in one route. This feels like it should be a series, so hopefully Ratalaika Games will make more with this strange protagonist, who can sense things other humans can't. From the nature of his character, this won't be the only murder the protagonist comes across and is assumed to be linked to it. There's certainly no hint as to where his powers come from, or where they will lead him either.