The design of the T-shirt pattern is inspired by the iconic and beloved anime series, Darling in the Franxx. The central theme revolves around the idea of freedom and self-discovery, which are core elements of the show. The main text, 'Class Eighteen,' is written in a bold, brushstroke style, symbolizing the strength and resilience of the characters. The phrase 'Dream what you want to dream; go where you want to go; be what you want to be, because you have only one life' is a powerful message that encourages viewers to pursue their dreams without fear.
The background features a soft, pastel color palette, creating a gentle and inviting atmosphere. This choice of colors reflects the emotional journey of the characters, who start from a place of uncertainty and grow into individuals who are confident and determined. The design also includes subtle references to the show's setting, such as the sky and the horizon, which are integral to the story's progression.