What the fragments think of eachother, this might not make a lot of sense.
What the kokichi thinks of the others.
Yuki: he thinks she's a control freak and boring, she's always working and doesn't do anything fun. She's too strict and gets too annoyed at him. She always trys telling him what to do. he dislikes her and thinks the host wouldn't be better off without her.
Oma: he thinks they're fun but bossy. They help him with pranks and stops Yuki from yelling at him. At times they scold him for how annoying he is to other people and how he always gets their host in trouble. He likes them and knows oma is important to the host.
Yuni: he thinks yuni is coward but fun. Yuni always worried about things and lashes out at all of them, but when it's in a good mood and has a lot of energy it does stuff with kokichi. It's the only one that doesn't scold him for what he does, nor does it get annoyed with him as easily. He likes it but is also a bit scared of it, he doesn't see how it benefits the host as it only makes him worry.
What Yuki thinks of the others.
Kokichi: she thinks kokichi is annoying and selfish. She doesn't understand why he's always trying to annoy everyone. He gets their host to annoy people without thinking of the consequences. He can get better but he doesn't seem to be trying. She dislikes him and thinks the host would be better without him.
Oma: they're helpful but too much of a push over. They sometimes help with what needs done like homework, chores etc. but they need to stand up to people. They need to help her control the others. She likes them and knows they're good for the host.
Yuni: it's rude and apathetic. She thinks yuni can be good but it's too stressed to be, she wants to help it but it refuses to say when something is bothering it. It pushes people away and rots in bed, she wants to help it but it's difficult. She is a bit scared of it but is okay with it, she knows it's there to protect the host.
What oma thinks of the others.
Kokichi: he's annoying but fun. They think kokichi can be fun but need Sto stop annoying everyone. He always tries to get a reaction from people, even when they're dangerous. He's putting them and the host in danger. But the reactions are funny. They are a bit annoyed by him but generally like him. They don't see how he's good for the host as he just puts him in danger.
Yuki: she's kind and helpful. She overworks herself and needs to learn it's okay to rest. When any of them need something she'll help them, she believes there's good in everyone and tries her best to help them. They like her and see how she benefits the host.
Yuni: it's rude and too untrusting. They know yuni is struggling and they try help, but it's difficult when it only ever thinks people are going to hurt it. No matter how much someone proves themselves it will never fully trust them. It's always insulting people and pushing them away. They're scared of it, but they do somewhat like its company. They know it's meant to protect the host but they think it could be doing better.
What yuni thinks of the others.
Kokichi: he's hurting but obnoxious. It understands why he lies. It understands that you need to take to survive, but it's doesn't understand why he needs to be so loud, the sound hurts, the sound scares it. He's trying to get better, but it's difficult when people only ever thinks you're just doing it for attention, it understands. He can be fun, when he's not being so obnoxious, it likes pulling pranks on people with him. It's scared of him, but it likes him as well. It understands why he's needed.
Yuki: she's arrogant but caring. No one cares that much about other people, she just wants to feel loved, but everyone does. She thinks she's better then people because she does more, because she helps and they "need" her, but that's not the only reason she helps. She helps because she knows what it's like to be struggling, it knows that. It is scared of her, but it likes her. It understands why she's needed.
Oma: they're kind but they're selfish. They want and want but it'll never be enough, they'll only want more. They share with others and want to help, but like the others it's because they like how it makes *them* feel. It is scared of them but it likes them. It understands why they're needed.