Not really a shounen-ai in my opinion...
8 Chapters (Complete)
Super informative about korean culture. Wish there was more (+ some romance scenes wouldn't be bad )
30 Chapters (Complete)
Really interesting story. Kind of unique. No romance in my opinion.
According to Baka-Updates:
9 Chapters + Prologue (Complete)
I really liked the story, it was bizarre but interesting. There were some bits and pieces of romance towards the end but I think it wasn't enough in order to add it on my romance lists
P. S. Some chapters are missing, unfortunately I haven't manged to find all of them but the majority of them can be read here:
https://batotwo.com/series/32416
According to Baka-Updates:
Prologue + 140 Chapters + Epilogue (Complete)
According to Baka-Updates
110 Chapters + Prologue (Complete)
According to Baka-Updates
85 Chapters + 2 Extras (Complete)
P. S. I couldn't find the extras + limited romance
Percy & the Yummies