There are literally three posts; do we really need an alias?
Regardless, do we really need the subtitle of the game for the tag?
If there has to be a tag relation, I would suggest a red_ash_-_the_indelible_legend -> red_ashimplication since that would allow for Red Ash -Magicicada- material to be tagged as well (if there happen to be any appreciable differences between media). As it is, red_ash could be sufficient to cover both game material and anime material since that is clearly meant to be the series main title.
