For few episodes Naksu / Cho Yeong FL will stay close with SML seo Yul
ML Jang uk and FL naksu both leads memories relationship more something like a erased and still FL think SML is her lover
When FL and ML both have same memories recalled at the same time and main leads confused about their memories.
Promised relationship STONE of both leads had and showing to eachother. FL & ML come to see face to face about recalled memories and asking "have we meet before".
And after few scene then FL and ML both thinking same thoughts separately.
SML seeing FL try to recall forgotten memory of her.
Final point when both main leads remembered thier forgotten relationship, Whole kdrama fandom will celebrate that moment.
1 
ML for Brain tumor
And FL for getting killed
FL alive possibility from 100% to 50% by the end of drama.
ML survive possibility from 0% to 50% by the end of drama.
What connections between them in webtoon
Second half of drama good romantic vibe eps
Romance concept saved this drama from getting flop┏(＾0＾)┛
ML actually saving money for his mother treatment and not for him.
We hope better not have that kind of thing in here
ML Jang uk and FL naksu both leads memories relationship more something like a erased and still FL think SML is her lover
When FL and ML both have same memories recalled at the same time and main leads confused about their memories.
Promised relationship STONE of both leads had and showing to eachother. FL & ML come to see face to face about recalled memories and asking "have we meet before".
And after few scene then FL and ML both thinking same thoughts separately.
SML seeing FL try to recall forgotten memory of her.
Final point
when both main leads remembered
thier forgotten relationship, Whole kdrama fandom will celebrate that moment.
"Dumbest Female lead award of the year"
FL be like ⁄(⁄ ⁄•⁄-⁄•⁄ ⁄)⁄ and crying unnecessarily 😂😂 and staying with ML.
SML be like (￣ヘ￣;) I'm only one right to get stab 😂😂 and love me FL. see I got stab for you 🤣🤣 but no luck