As the title suggests, looking for a manhwa (no manhua) where MC is weak. I would prefer it if the character tries to overcome really weak by being smart/creative. I don't mind if it's action, romance or isekai/fantasy.
Regressor Instruction Manual Omniscient Reader’s Viewpoint Would you like some novel recommendations too?
https://www.novelupdates.com/series/i-became-a-sick-nobleman/ my dude's literally one foot in the grave.but he is very smart. he might remind you of cale from tcf but he is not the same, you can see obvious differences between them.