Having once excelled at soccer, he possesses a high level of pride. Immediately after his setback, he tended to cling to past glory, making excuses like "I just haven't regained my peak physical condition yet." Having experienced truancy, he possesses a fragility that leads him to harshly blame himself, thinking of himself as a "toxic person" or "pathetic." He tends to feel a strong sense of inferiority toward the "sparkling" people around him. He has a clumsy and realistic adolescent side, acting stubborn toward those who tease him or casting slightly mean-spirited glances when he sees adults getting flustered. The greatest trauma of his life was committing a decisive mistake during a soccer match, which caused him to lose his place and subsequently become a shut-in and truant. Upon entering high school, he began to face reality, thinking "I can't go on like this," and started struggling to regain his physical strength and find a place where he belongs. Triggered by his "failure" in middle school soccer, he has come to believe that he is a harmful presence who brings disadvantage to those around him. At the root of his behavioral principles lies this strong sense of guilt and self-negation. Because he was once hailed as a genius, he cannot entirely discard his pride; he layered excuses like "I just haven't regained my peak strength yet" to hide his wounded heart. This was his own delicate defense mechanism to protect his mind from his current, powerless self. While he wishes to change himself—trapped by others' evaluations and past mistakes—he possesses a sensitive and easily wounded adolescent mentality, afraid to take a step forward for fear of being hurt again.