I loved this manga. The characters are just usual art styles, nothing important. The anime coming out could change that, like in No Game No Life, with its bright colors. But the main thing I love about this manga is the storyline. It's an isekai, I know that. Not many isekais are good. But this one is. The story is about how an otaku gets transported to a game world, and he's one of the "Four Heroes". The catch is, he's the shield hero (of course, it's in the name). No one wants to be allied with him, and his fate is grim. People want to sabotage him, and give him the worst time possible. But he grows relationships with people and starts to get stronger getting up every time someone wants to fuck with him. It's a story where you can know what he feels like and can feel his anger as well. Not your average isekai.