Worst manga I read in a long time. It has literally nothing to offer. Romance is nonexistent, there's no comedy, MC is autistic in a not funny way and all the action is just "teleports behind you". It's also not even a realistic assassination manga, these assassins just do whatever they want and it's just a giant brawl in a populated area all the time, but somehow no one cares or hears anything because muh ninja. They are trained killers that are supposed to be efficient and silent, but are still monologuing with eachother during fights. The whole concept is dead on arrival. Genuinely, wtf. At least the art isn't bad, but sometimes the action is hard to follow, but I doubt it's the artist's fault since the author seems to be just not good at all.