Your SS needs more practice. If you want a fat man to pull several monsters, you need to learn to control the fat man manually first. You can use TAB to switch targets (TAB is not to switch the nearest monster, but to switch all monsters in the front view, just press it a few times). Then, because the fat man's hatred skill has single scene and group scene, you can go up and fight a monster, switch targets to ridicule one alone, and then switch targets to fight, and the group scene stays there. As for your fat man, it's normal. You are only level 20 now, and your talent is only on the second floor at most, so you should take the painful route. If you want a fat man to be called a meat shield, you'd better use demon talent.