Not sure if this has already been addressed, but if you sign in via a Google+ account will the functionality of this still continue with Google's shut down of google+?
Google+
MrSealamundo info was taken from Google+ email announcement:
"If you sign in to sites and apps using the Google+ Sign-in button, these buttons will stop working in the coming weeks but in some cases may be replaced by a Google Sign-in button. You'll still be able to sign in with your Google Account wherever you see Google Sign-in buttons. "
Yuki_Qing I actually started another post regarding this and have enquired if we can log in using Gmail account in email option and whether our stuff like stones and novels will be retained yet to receive formal reply
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Demonslayer007 I see, sorry not see that.. wondering, so far I log in via website or app, I only see Google sign-in button instead of google+. guess only, doesn't both are using same email and password.
maybe you can try login via Gmail account and see any difference or not while waiting for webnovel respond to your question.
Yuki_Qing Thanks for the reply and sure I wish to try login using my Gmail account in Email option but I fear that it will open up a new Webnovel Account and currently I have no interest to do so still there is a bit time until Google+ shutdown so I will probably wait for a couple of days till @WEBNOVEL_OFFICIAL to reply if they will reply 
6 days later
Yuki_Qing thanks for the info I do understand that Gmail will continue to work what I wanted what to know that I sign in Webnovel using Google + sign in out of four sign in available which are Email, Facebook, Twitter, and Google+
Demonslayer007 I would like to know that as well
Demonslayer007 yeah, I also login using Google+ sign too. This shutdown announcement is from Oct last year, webnovel or any other website/developer should aware of it.
Yup, hope webnovel announce something to reassure us.