Touma at first glance appears to be rather...intense, even unfriendly to some. Doesn’t help that the fellow doesn’t talk to much, not often joining into a conversation at the start. It is also known that Touma is rather docile to confrontation, even going so far as ignoring or deflecting such advances.
Of course, the book is more than just the cover, and Touma is no different. Underneath the rough exterior is a man who lives off the smiles of others. If by any chance a fellow were to crack Touma’s shell, there is no end to his goofiness, his sincerity, or the amount of care he has with the friendship that no doubt he will go a long way. Those who get to know Touma would know that he’s a man who will be willing to put the world before his own life, as the risk of his life is only negligible compared to the life of others(including his opponents).
To most whom meet him, it is pretty clear he carries in his heart an enormous and grievous guilt. Some may even say it is what prevents him from becoming out right emotionally close to most of the people around him. It is quite unknown, to all but a few, what baggage the man carries with him. It is clear that there is somthing Touma wants, but he himself is holding back from achieving his one true desire. Whatever it is, one can assume that it is what ultimately drives him to a life of humble service and selfless personal sacrifice.