Mitzu , Satzu, Chaetzu, Natzu, Motzu, Jeontzu, Datzu, Jitzu -- Look out for a new fan site that you can see the collated videos on these and vote for the one you liked best.
There is soi much genuine love and affection among Twice members for each other. And thats why Twice fans Once love them so much. You do not see this in the other girl groups.