The concept is quite brilliant, but the execution could certainly have been better.

The "explanation" for the bewildering scenes for many of the episode is basically that, for people whose brains are oxygen-deprived and they are on the brink of death or in a coma, they hallucinate about what their lives could have been had they done something different.

At the start of the series, Great sees himself knocking a woman down with his car and driving off. When the vision ends, he drives and knocks someone down without driving off irresponsibly, changing the course of events. Eventually, however, it turns out that Great does not see 4 minutes into the future at all. The series of events happening following the hit-and-run is the reality whereas the other series of events is just something that goes on in his mind when he is in danger of dying.

Some find it highly unsatisfactory that so much of the series feature the "hallucinations" rather than the reality. To me, it is fine as the hallucinations reveal their most deep-seated desires and make the reality especially poignant when it is revealed. Nonetheless, I think there are issues. Since what we are seeing isn't premised on traveling back in time to fix the past or predicting the future to change something for the better, what we are seeing is what *could* have happened rather than what *would* have happened. In other words, the alternative story just a story spun by the dying brains of the characters rather than a definite course of events. This does compromise the emotive quality of the series.

It also seems to me that the "explanation" doesn't really explain things. At one point, we are led to think that Tonkla senses the presence of his brother, who has been killed. But, based on the explanation, this makes no sense whether we are watching the reality or Great's imagined series of events. The two do not mix unless Great's imagination can invade the reality that Tonkla experiences. Furthermore, it is quite confusing that when Great supposedly sees four minutes into the future, there are glances of himself being intimate with Time that happen way after the four minutes. The visions seem to be simply planted there to intrigue viewers and perhaps titillate them with glimpses of sex scenes. I also feel that, in the "hallucinated" series of events, there are scenes that Great wouldn't be imagining simply because they do not involve him (e.g. Time at the hospital overhearing what his colleagues say about his relationship with another doctor) and are not quite relevant to the alternative reality that his dying brain so badly wants.

When it comes to the BL, the relationship between Great and Time in the real version of events isn't developed well. We do not see enough of how Time's feelings for Great develop and see more of him being obsessed with avenging his parents who were killed. As for the other BL couple (three characters, actually), Tonkla/Korn or Tonkla/Win, there are just many sex scenes without emotional intensity. The story seems to vacillate between showing Korn as someone who deeply loves Tonkla and showing him as someone who does not truly care about him. Tonkla's apparent preoccupation with wanting to have unprotected sex seems nonsensical and added in just for dirty talk even though one might come up with some labored explanation for it. Win is interesting but lacks development--the final episode is a little too rushed for a series that seems to take its time to reveal things to us.

Ultimately, the freshness of the concept and the way the series pushes boundaries in depicting sex and nudity in BLs may garner this series a lot of attention, but it is unlikely remembered as a classic that is executed with finesse in every way.