I thought the concept was interesting. It creates a great metaphor for homophobia and homosexuality for two young men who come across one another. Monos can see the world only in black and white. Probes are the kind of soulmates of Monos who give them the ability to see color. Monos are said to often become obsessive and violent. There is a subplot about the disappearance of the Monos mother that doesn't go anywhere. I don't know why that is part of the story.

The episodes are short, about 15 minutes for most of them. The last episode warmed my little heart. This is a very chaste BL drama. There are two kisses in the last episode. This is a BL that is more about subtlety of its subject matter than really being romantic.