F급 용사 키우기

Well, I admit that F class game is exaggerated,  it is worth 2 stars. I get interested in the story background and the pixel art. The bgm starts to be fine, everything is ok for a start, but after playing for 5 minutes, I started to feel bored. As an idle game, I know the battle part is not the most important thing, but at least give me some option to let me do a skill or control the direction. The fact is there is no button for you, all I can do is just watch and spend my money to raise his attack power. The bgm even started to be annoyed.