He was not as stupid as people thought. He realized that he was a genius, who grew up in a warm and peaceful family and supported his dreams. He believed that composing was his only skill.

However, love and affectionate words bound him into a belief that he was special, in effect making it seem as if he had a world of his own solitude. He created a distance between himself and many people unintentionally. That's when he felt lonely and wished there was someone else to be there for him, he wished a “place”. But how?

He used to understand that by saying the words "I love you" he would also receive love from others. That's how reciprocity works. But did it work that way for him?

It made him try to do everything to take care of the people around him, as he thought that composing songs was the only thing he was good at. Despite realizing that those people are also 'destroying' him from within.

He talked about how people end up closing their eyes to the fact that they can't do certain registers of voices that he made, those that couldn't do certain sound colors, and yet they were blinded and made it the absolute standard.

It made Leo feel at liberty to do many things without fear of protest. And that became his dilemma, about how he made people fight for it, making him like a reliable gunsmith. It blinded him to the point where he lost confidence after having to accept that his creation had flaws.

Leo felt regret for forcing his solitary ideal world, his own ideas on others through his music, trying to make them perform the way he perceived them. He, who had been trapped in his own world for a long time, was 'forced’ to accept that there were flaws.

He was troubled by the realization that his music, which he thought could "win" against others, became a weapon to hurt people. He blamed himself for this, acknowledging his genius as part of the problem. His creations created a homogeneity in the school, suppressing individual creativity to lift up Leo's masterpieces.

He resents how his music, intended for the wrong reasons, has become a weapon, and he hates that it's valued only for its use in battles, not for its true artistic intention—pure feelings.

He was fully aware, realizing that people were only taking advantage of his talent. However, he still decided to pretend that 'everything was fine', thinking that it was just part of his negative thoughts.

He didn't let his negative emotions out. At least a little at a time so that he would still have room for another emotion to come in.

Until one day, when Checkmate happened, he had to accept the fact that they were just taking advantage of him.

Leo was seen struggling with his anxiety several times. He repeatedly ran away from practicing and kept his distance from Knights, and once decided to only watch them from afar.

He once referred himself to the fairytale Urashima Tarou, a tale of lost time and lonesomeness, as he associated himself wandering bewildered through a world that seemed to move faster than he could grasp. It was because he realized he had already spent all of his time on amusement for himself and missed out on things around him that were important to him, things that he cared about.

He felt lost and disconnected from his own "name," repeatedly mentioning not having a "place" for himself as a form of 'punishment.’

I thought I could grow stronger by meeting you. Even if there's rain, or if you get trampled, the way you bloom with pride is a beacon to me.

I also yearn to bloom proudly where I was planted.

”The next spring, I want to see you again.” ”Next time we meet, I'll be stronger than ever.”

But I didn't see you there. From all the ways of destroying yourself, I witnessed it.

Foolishly, I went to your place, wandering down the hallway of your memories. I know I was foolish, but I still waited for you back then and believed you would return.