akdage

I actually haven't started to watch My Grandpa is a BL Writer but from the description and title it reminded me BL Metamorphosis

Fujimoto Kodai is the main lead in both japanese bls, but while one is fluffy, other one has more complicated (?) theme

It's such a surprise that no one recommend it, in BL Metamorphosis, they are reading I Just Want to See You manga and become close friends

Both of them japanese bl high school settings, they have summer trips and friends to lovers trop, yearning is also always there

They have kind of similar dynamic between the male leads. All I can see is how they value each other so much and some how, the energy is similar also

Non-popular guy and very popular, handsome, successful guy's love story. In both, popular person is the one who fell in love first. Both show have similar, kind hearted aura

Both happens in high school setting and there is a new student in the other one's class. Both of them fluffy series without making absurd comedic (which is also okay)

Similar plot, there is some kind of spiritual things happening and there is a police officer, some cases and an adviser/consulter. High bromance/bl/love between them

they are co-workers and rivals and at the same time, behind the doors, they have an affair in both show. And of course queer love story

Kamisama no Ekohiiki is a hidden gem. One side love story has similarities to Ticket to Heaven also, religious gay love (main love story also queer, there is even a lesbian love story), there is a priest character who tasted that kind love when he is young and rest is spoiler. Both show represents real life struggles of being queer

Mr Heart and the movie Feel the Wind which is adapted from the novel, anime Kazetsuyo (Run with the Wind) has same promise. Running, diffuculties which a runner has, bromance/romance through the friendship etc

Both drama (in short) about running and relationship, dynamics between two men and how they support each other