:bulletred: Kouta before the killing of his family, is really often cheerful and happy around his friends and others. He is often a bubbly child and willing to be friends with anyone.
:bulletred: During the events of the anime, Kouta seems to be mature but also friendly still. However, he does have temper at times during confusion and shows anger when he is. Despite one or two outbursts, he is willing to still make up for it and help anyone out, spefically females due to traumatizing past which Lucy had given him.
:bulletred: After the events of the anime, and now having to deal with his past memories, Kouta is now more monotoned and upset.