Seo Jong Hu, a nimble fighter who goes by the codename Healer, leads a solitary life working as an errand boy for various tasks. When he was asked to collect DNA from a young woman, Young Shin, he discovers her connections to his father's past. Intrigued to uncover this mystery, he disguises himself as an intern at her newspaper agency, while falling head over heels for her. However, the more he investigates, the more he put them both in danger.

Healer gives me unforgettable characters, cute romance with all the butterfly feelings, fun parkour action, unexpected comedy and angsty conflicts... all presented very cohesively in this 20-episode-show. Every emotional scene hits the way it should, I enjoyed every episode equally. Even after months, I still love it as much and keep coming back to rewatch specific scenes.

I love how authentic Healer and Yeong Sin's personalities are, their quirks, their flaws, their chemistry... played to perfection by Ji Chang Wook and Park Min Young. Their romance felt fitting and never take me out of the angsty part. They respects each other and their relationship is based with consent and trust. Their hand skinships scenes are so memorable, I love every second of it. Aside from the romance, the action is full of comedy and thrills! I'm addicted seeing Healer's running sequence, it's like art! As far as ending goes... I like how 'simple' it is, there is nothing grand happened but most characters are given proper closures.