CANAAN I don't know if you know this, but it isn't Webnovel that decides what you see. The ads you see are decided by their ad-partners like Google Adsense, Ad-mob, Unity Ads, etc. Some ads have a small question mark or exclamation mark you can click to get rid of the ad by choosing a I don't want to see this ad or Repetitive ad or Not interested in this ad, etc.
If there's nothing like that, it will give you some option to tweak your settings and whatnot. In the end, ads you watch are dependent on what you are mostly searching about, or what kind of sites you spend most of your time in. If you spend more time playing or talking about games similar to Raid: Shadow Legend or the games in the same genre as that, then you will get ads for Raid or something like that.
Or you can disable targeted advertisement from your Google, Microsoft, or whatever account/device (do a google search for more info).