BUR #5130 has been approved by @evazion.
rename clain -> clain_(fractale)
rename dias -> dias_(fractale)
rename nessa -> nessa_(fractale)
rename phryne -> phryne_(fractale)
Should be clear enough. Nessa, especially, is more known nowadays as Nessa from Pokemon Sword and Shield, not a character from fractale, and I'm not sure people still remember this anime.
(Other two characters listed in the wiki have a last name, so qualifier isn't needed)