Thoughts on Finnian?
Finny is a sweet, sweet person. His heart is genuine despite the fact he has had a rough life. It seems he didn’t have a childhood. From the flashbacks, it seems like he was treated as nothing more than lab specimen. He had no name. No identity.
With that past, it would be normal to see someone become cold, bitter, and cynical, but Finny is none of these things. He has hope, he loves deeply, and he takes pleasure in the small things in life.
And Finny’s brave, even if he doesn’t think that he is. When Ciel was scared of Sebastian during the Green Witch arc, Finny stood up to Sebastian - someone he not only respects but has a certain amount of fear of disobeying. He overcame this fear because he wanted to protect Ciel.
Like many of the characters, Finny is not innocent, but he has a sweet, pure heart.