TV series

Heart Stain

2025 · 1 season

A tender, quietly aching teen romance where small emotional stakes feel immense, and every glance or confession lands with gentle weight.

Overview: Woo-hyun was planning on hiding his crush on his homeroom teacher, but his best friend Do-ha finds out and confesses for him.
How it feels: Romantic, melancholic, warm and tense. Measured and needs your attention.
About: Love, identity, friendship, coming-of-age
Content: Mild sexual content and language. No violence or gore.
Note: Written by AI, so it can be wrong. Full breakdown

Your rating is saved. See your suggestions, or find titles like this one below.

Rate it, and Mesmero finds titles that feel like it. You do not need an account.

Add to a list: Heart Stain

In the USNo streaming, rental or purchase options known.

In your watch list

More like this

Like Heart Stain, but

Written by AI. It can be wrong.

Full breakdown

Tone: romanticstrength 3 of 3
melancholicstrength 2 of 3
warmstrength 2 of 3
tensestrength 1 of 3
Pacing: measured, 2 of 4, from slow-burn to relentless
Attention: engaged, 3 of 4, from background-friendly to demanding
Themes: love
identity
friendship
coming-of-age
sexuality
Places: school
Era: contemporary
Audience: teen
Form: serialised
Content intensity: Gore none
Language mild
Violence none
Sex mild

All scales, 0 to 10

No streaming, rental or purchase options are known in the US.

Streaming data from JustWatch.TMDB

Genres: drama
Created by: Ha Na
Written by: Yoon I Na
Starring: Hamin, Kim Ji-oh, Kang Yeon-jae, Shin Si-ye, Kim Yi-gun, Yoo Ho Su
Length: 1 seasons, 8 episodes, 25 min each
Network: Heavenly
Country: South Korea
Languages: Korean