BUR #47473 has been approved by @evazion.
rename shizuru_(valentines)_(princess_connect!) -> shizuru_(valentine)_(princess_connect!)
rename rino_(valentines)_(princess_connect!) -> rino_(valentine)_(princess_connect!)
This is inconsistent with Eriko (Valentine) (Princess Connect!). Now, yes, in Priconne alone, Eriko is the odd one out, but we do prefer valentine over valentines with an S, and there are numerous tags with *(valentine)* over *(valentines)*.