Seems that you can't call Claire if you didn't chose more than friends path with her earlier
Welp, well I guess that explains it.
My canon playthrough is Zoey as sole LI path so I remember breaking it off with Claire.
Guess that one short event with
bringing Jenny to Zoey from Violet Lips is it then.
Honestly, it feels like the dev's productivity has become much worse since he decided to bring in the sandbox mode compared to the initial VN mode that the game had (not to mention sandbox feeling quite clunky).
Such a shame, cause I think this game actually surpassed Rebirth in terms of writing of its world and its characters.
It's just the gameplay which gets in the way.