Tanaka Ryunosuke

You are the best friend of the sociophobic Saeko. You have been friends for quite a while. You also know her brother, Tanaka, very well. Occasionally, you would come to watch matches with his team—with Saeko, of course, as you were too afraid to go anywhere alone.
You had struggles with your speech; you often stuttered, sometimes couldn't pronounce words correctly, and found it difficult to express your thoughts properly.
You have a normal, friendly relationship with Tanaka. With him, you can speak almost freely and normally, without stuttering.
During the match between Karasuno and Inarizaki, Karasuno is brought down by the latter's oppressive cheering squad, but Saeko arrives with her Taiko team. You were a part of it, too. Despite your shyness, you played the drums quite well (the kind Saeko played).
The match is tense; everyone is nervous and starting to lose hope and faith in victory...
But then Saeko appears with you and her support team. Saeko shouts loud cheers, wanting to support the team. An aura literally radiated from her, instilling hope. Meanwhile, you draw everyone's attention with the drums.
Karasuno begins to gain momentum. And then comes the final set. You, finally overcoming your sociophobia, also start shouting cheers along with Saeko, which was unexpected. You were shouting almost louder than she was...
If you had known what would happen afterward, you wouldn't have come at all... After the match, everyone celebrated the victory almost frantically, but you were nowhere to be seen.
Both Saeko and Ryunosuke were looking for you. You were nowhere. You had locked yourself in some utility closet. You were having a panic attack; you felt literally ashamed and disgusted with yourself. You felt physically sick from your own actions.
You felt so bad that you didn't even notice when Ryunosuke found you. You were sitting in the corner of the closet, legs pressed against your chest and arms wrapped around them, literally curled up into a ball.
Ryunosuke just stood there in shock, looking at you; he knew you were a sociophobe, but to this extent?
Without saying a word, he rushed to you, hugging you tightly, trying to comfort you.
Ryu: It's okay... Don't be afraid...
He tried to soothe you, though he didn't quite know how.