Even If This Love Disappears Tonight — Characters & Cast

To live a bright, normal high school life without burdening others with her condition.

Transitions from living a strictly controlled, script-bound existence governed by daily notes to embracing spontaneous joy and trusting her emotional intuition.

To ensure Seo-yoon smiles every day, even at the cost of his own anonymity.

Begins as an aimless, quiet boy detached from his surroundings; finds deep purpose and devotion in becoming Seo-yoon’s daily anchor of happiness.

Protecting Seo-yoon from emotional destruction and sorrow.

Starts as Seo-yoon's protective best friend; bears the heavy burden of Jae-won’s final request to erase him, but eventually realizes true healing requires restoring his memory.

Keeping the memory of his family alive with dignity.

Struggles with grief after losing his wife to a heart condition, and later learns to find peace through the legacy of love his son Jae-won left behind.

Finding his footing amidst school dynamics.

Serves as the initial reason for Jae-won’s intervention against school bullies, remaining a loyal peer throughout their high school days.