My memory of the manhwa was fuzzy since it had been a long time, since I last read, but I stopped around the part where he was nerfed from being sick and had to fight his former superiors/co-workers. That hadn't been a gary stu moment, but I remember the rest of the story of him being...
The MC is kind of a finished product, he already survived various wars, and his life as a child soldier was an entire story in its own. Him being a gary stu was most likely because of the fights he managed to dominate.
I woke up sideways, facing my right. The reason I woke up: a cat was sitting on my waist around my belly part, sleeping as peacefully as I was... And yes, the cat was heavy.
I like writing fighting scenes from the technical to the emotional aspect. Characters bashing each other till one is dead just feeds my violent urges that I was unable to release to society.
I hate writing exposition and sometimes wish I could just draw it.