The same thing happened to Ritchie happens to Casey. I totally forgot about her.
You know when a list gets recommended, it appears on the wiki page such as the character, location, concept, and object page. However, the episode wiki page doesn't really show it. It's the same thing for the individual volume pages. I think you should include the character of interest in this list, so everyone can see it when they viewed the character page.
There is seemingly no 'perfect' way to truly say goodbye. So I gathered a bunch of them!
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