The story of a very talented guy that's beaten by a girl and starts playing all day with a cellphone, this cellphone is a special "artifact" or something that lets him get stronger by playing. That's the premise of the story and it's enough to get a good idea on what to expect, the guy spends all the time playing, literally, even when a gorgeous girl tries to flirt with him, he pushes her away to play with his phone. He also seems to be able to assimilate (somehow) his actions in the video game and pull them off in reality, often without even practicing them. It's, imo, a very dumb premise and it's so poorly explained and written that's hard to take anything seriously. At the same time, there is no comedy, so it's intended to be taken seriously... This is my main gripe, the terrible storytelling skills, most of the time it's as if the artist took all the details and explanations in the novel and decided to do without them for the manhua (something rather common in manhua/wa, unfortunately), like when we the find out that the things happening have something to do with his father and how the MC acts to the whole thing.
Character-wise, the MC is a rather stoic fellow, he seems to be impervious to any of the normal feelings of a young male teenager, he cares not for girls, has no real friends (thou he does care for a few people) and doesn't seem to have any interesting other than playing with his cellphone, he's as dull as they come. The only other 2 relevant chars so far are a rich kid that mainly takes the role of forcing the MC to do something since otherwise there is no story, and the girl who beat him in one move. The first one is an ok char, the second is the cold queen tsundere type (probably, just my guess, she appeared twice so far).
The art is ok, on the good side for manhua, and pace is mostly ok, maybe, I find it boring but mostly from the writing and premise.
Overall, it's not very good thou it's at least readable. There's nothing particularly good in the manhua and as said, the storytelling is crap.