Komaeda first comes off as a polite, friendly, and easygoing, yet somewhat insecure boy. Hajime Hinata even mentions that his bright smile is very comforting. He was the only one that stayed with Hinata while he was unconscious, and expressed concern for his well-being, even after Hinata told him to go away. Though friendly with everyone, he is mostly interested in spending time with Hinata, and can be quite clingy. Hinata considers him a little annoying and not the most reliable, but still a kind person.
Komaeda attempts to be the team's conflict mediator and a poster boy for optimism, often encouraging others to be hopeful and to cooperate. However, he isn't taken very seriously. Hiyoko Saionji makes fun of him, and considers his dramatic pep talks about hope and friendship embarrassing and tiresome. He is generally quite submissive and has a self-deprecating attitude, even agreeing with Hiyoko and the other's snide remarks.
Although though he claims to be a pessimist, Komaeda often appears unusually carefree. He lacks tact and occasionally says awkward, strange, and unsettling things without realizing it. At times he can also be more forcefulーhe is quick to scold Hinata when he's being too pessimistic or when he thought he was bullying Mikan Tsumiki. He is also notably annoyed by Teruteru Hanamura's treatment of girls and decides to keep an eye on him to make sure he won't harass anyone.
Komaeda likely suppresses any real feelings of sorrow or fear as a coping mechanism, because he experiences tragedy often due to his luck. He has also seen very unlikely and strange things due to his luck, which is why he is not easily surprised. As a result of everything he's been through, he has become more emotionally numb and he is rarely openly angry or scared. He often lacks appropriate emotions in situations where most people would be afraid, like threats of violence. Even so, he once mentioned that he feels fear every day of his life, most likely because of his luck. Furthermore, he can be very angered by despair and other things he considers insulting toward hope. When he does express anger, he becomes notably more serious. When displeased, he is very passive-aggressive.
Komaeda is capable of feeling some guilt and care for others, and he does not truly enjoy the suffering of others, but the hope born from it. Still, he is typically very emotionally cold and doesn't seem to feel much remorse or grief neither. He's shown to be fine with tricking, manipulation and stealing, though it should be noted that he does these for the sake of a bigger goal rather than his own ends. He has been described as a very honest person, though he will lie if he finds it necessary. While he prefers to do things on his own, he is very lonely and often tries to join the other Ultimates in their activities and becomes really happy if he's given attention, even if just a little bit. It's also implied that he intentionally keeps his distance from others because he wants to protect them from the disasters caused by his bad luck.
Komaeda is also one of the most intelligent characters of the second game, being very cunning and smart. He often solves a case long before the others, but he doesn't want credit for this. Instead, he often acts ignorant during the trials, manipulates the conversation by giving (often unnoticed) hints and then praises the others as if they're the ones who figured it all out. He does this because he considers himself too unimportant to take a more openly active role, wants to see the other Ultimates figure things out by themselves, and he wishes to remain neutral until he can determine which side has the stronger hope.
PLEASE DO NOT TRY TO SOUND LIKE BRYCE PAPENBROOK.
