For Mori:
I currently don't have his cert yet but
HuanHuan would fit the part of a confidence booster. I kept his personality mostly the same from the information given from the event. HuanHuan is enthusiastic and outgoing. He's kind and friendly to all he meets. He tries to help others to the best of his ability and if it doesn't work out the way he planned it to, HuanHuan will strive to do better next time.
I also have
Tao, she could be a possible friend? Maybe a confidence booster as well. Tao is a kind and generous Tokoro. She enjoys new situations, in particular she likes adventures, she's always exploring. Tao will be nervous at first but once she warms up to another, she'll be a loyal and good friend.
For Jin:
I see you wish for Jin to meet someone not so nice. I have a not so nice Tokoro,
Yuda. He's cruel and selfish-caring only about himself. Yuda enjoys causing pain to others, not in a physical way since he's not the fighting/attacking sort unless absolutely necessary, but emotionally and mentally.