Japanese remake of the same story.

Differences:
ML has savant syndrome.
He works as a pediatric surgeon.

- Close knit community.
- Family values above everything.
- Aging of parents/grandparents.
- Character development / personal growth.
- Reality check, no idol love.

Friendship
Youth
School-college-working life
Focus on real-life problems
Siblings bond
Hardworking and cheerful characters

Short and sweet! Both set in school/college background and gives puppy love feels yet refreshing. Most importantly non-draggy story line.