I've always been a little annoyed that the Danganronpa Wiki doesn't list what item each character dislikes/hates, so I did it myself. Note that any misspelling of an item's name or resulting dialogue is intentional, as that is how it was written in the North American PSVita release (the copy I own).

This information is free to be reposted anywhere. Credit is appreciated but not required.

Also note that each "OK" section will simply have the text "all other items" since if an item doesn't fall into the like/love or dislike/hate categories, it literally cannot go anywhere else but into the "OK" category. If you want to know all the items in the game, visit this page.

I will also include Island Mode only text that isn't well documented, such as random chance power-up texts and suchlike. The following two characters have the most Island Mode text:

Mahiru Koizumi

Loves: 032. Silver Ring, 054. Kirlian Photography, 082. Japanese Tea Cup, 086. Century Potpourri, 102. Rose In Vitro, 107. Compact Costume
Likes: 022. Apron Dress, 029. Passionate Glasses, 033. Hope's Peak Ring, 037. Jabbaian Jewelry, 039. Ubiquitous Handbook, 044. Kiss Note, 071. Antique Doll, 073. Moon Rock, 078. Marine Snow, 080. Mini Wave-Dissipaters, 081. Stardust, 085. Bojobo Dolls, 093. Girl with the Bear Hairpin
OK: All other items
Dislikes: 004. Blue Ram, 020. Iroha T-Shirt, 021. Brightly Colored Jeans, 023. Falkor's Muffler, 024. Fresh Bindings, 026. Spy Spike, 027. Secret Boots, 028. Safety Half-Shoes, 034. Spectre Ring, 036 Another Hope, 042. Ogami Clan Codex, 043. Men's Manma, 045. Black Rabbit Picture Book, 047. Radiosonde, 048. Male Cynlinder, 049. Measuring Flask, 052. Flash Suppressor, 062. Power Gauntlet, 064. Nitro Racer, 066. Gag Ball, 076. 1000 Cherry Blossoms, 084. Collapsible Fishing Rod, 088. Seven Sword, 094. Bar, 099. Dull Kitchen Knife, 100. Occult Photo Phrame, 112. Hagakure Crystal Ball
Hates: 025. Queen’s Straitjacket, 067. Kokeshi Dynamo, 090. Memory Notebook, 091. Mukuro's Knife

Reactions

Loves
...Is it really okay for me to accept something this amazing when it's not even my birthday?
What should I do...? I'm really, really happy.
C-Can I really have this?
Thanks Hajime, I'll make sure I take good care of it.
Likes
Oh, you're surprisingly considerate.
I guess my opinion of you is a little different now. Hehe, thanks.
You're giving me this?
Ah...um, thanks. I'm pretty...happy, I think.
Huh? Can I really have this...?
I actually wanted this right now. I'll gladly take it.
OK
If you're really gonna give me that, I guess I can accept it but...
Is it so unreasonable for me to ask you to think about what I actually like?
Huh? You're giving this to me?
I see, you do have a kind side. I'll gladly take it.
It's so obvious you're trying to bait me with items and stuff, but...I guess I'll take it for now.
...Thanks.
Dislikes
This is so like you... Obviously, that's not a compliment.
Sorry, but I don't like stuff like that.
...What really pisses me off is that you actually thought I'd be happy with that.
Why don't you give that to someone who would look better with it?
Hates
Why do you have something like that...? Why are you even giving that to me...?
Enough already. Just stay 150 feet away from me at all times.
Huh!? What does this mean!?
Jeez...I can't believe you! There's no way I'll accept this!

Island Mode

Energetic (XL HP)
Good morning! No matter where we go, I feel like I'll be able to take great photos!
Mahiru seems to be feeling pretty good...
Overworked (HP 0)
Sigh... I might have worked a little too hard...

Nagito Komaeda

Loves: 033. Hope's Peak Ring, 090. Memory Notebook, 091. Mukuro's Knife
Likes: 004. Blue Ram, 012. Hardtack of Hope, 015. Viva Ice, 031. Earring of Crushed Evil, 036. Another Hope, 068. Go Stone, 086. Century Potpourri, 110. Secret Wind Sword Book
OK: All other items
Dislikes: 112. Hagakure Crystal Ball
Hates: 034. Spectre Ring, 066. Gag Ball, 093. Girl with the Bear Hairpin

Reactions

Loves
Huh...? Is it...really okay to accept this...?
Hmhmhm... Just thinking about the bad luck that's waiting for me is making me feel all tingly...!
O-Oh my goodness...! I never expected to find something like this here...!
I see... I was brought to this island just so I could obtain this...!
I can't tell you how happy I am right now!
You're giving me this...?
What should I do...? I might start liking you even more...
Hmhmhm...
Likes
Hajime...um...I don't know how to say this, but...
This is the first time I've ever received a gift that made me this happy... Thank you.
Hmmm...this is quite interesting.
Thanks. I'll take good care of it!
OK
I'm grateful to receive anything you give me!
I don't know if it's bad luck or good luck to receive this... Hmmm...I'm looking forward to finding out!
Huh? I can have this?
It's really generous of you to give a gift to a piece of trash like me!
You're going to give this to me? Thanks Hajime!
I'm grateful to receive anything you give me, even if it's trash or leftover food!
Dislikes
Hmmm...how should I put this? It's a pretty uninspired item...
Receiving this isn't really good luck or bad luck, so I'm sorry to say that I'll have to pass.
That item is too much for someone like me...
I'm sorry but can you hurry up and put that away...?
Thanks, but I can't accept this...
It might be better if you give it to a more deserving person instead of me.
Hates
Even if my good luck outweighs the bad things that happens to me, this is still too...
I'm sorry Hajime... Please forgive a coward like me...!
This is amazing, Hajime! What an impressive display of harassment!
Even I'm about to lose sight of hope in the presence of that item...!
I would greatly appreciate it if you hurried up and put that dangerous-looking item away!

Island Mode

Energetic (XL HP)
A new morning... A morning filled with hope!
Nagito seems to be feeling pretty good...
Overworked (HP 0)
Haha... Anything but a meaningless death.

Nekomaru Nidai

Loves: 019. Coconut, 024. Fresh Bindings, 042. Ogami Clan Codex, 089. Sand God's Storm Horn
Likes: 008. Prepackaged Orzotto, 021. Brightly Colored Jeans, 033. Hope's Peak Ring, 039. Ubiquitous Handbook, 051. Infrared Thermometer, 068. Go Stone, 078. Marine Snow, 085. Bojobo Dolls, 086. Century Potpourri, 096. Tissue, 102. Rose In Vitro
OK: All other items
Dislikes: 004. Blue Ram, 025. Queen’s Straitjacket, 036. Another Hope, 041. Tips & Tips 2nd Edition, 054. Kirlian Photography, 057. Many-Sided Dice Set, 058. The Funbox, 059. The Funplane, 062. Power Gauntlet, 064. Nitro Racer, 066. Gag Ball, 075. Desperation, 097. Jabba the Frog, 098. Iguana Daughter, 100. Occult Photo Phrame, 107. Compact Costume, 112. Hagakure Crystal Ball
Hates: 044. Kiss Note, 067. Kokeshi Dynamo

Reactions

Loves
Whooooooa!? Th-This is...!?
Why do you have this...? No! No questions!
My friend... You have my gratitude from the bottom of my heart...!
I have rightfully received...your male spirit!
If you want, I'll accept you as well! C'mon! BRING IT ONNNNN!
Likes
Oooh! This is quite an item!
I'll definitely return the favor to your body!
It's something you've chosen for me. Why would you think I wouldn't accept it!?
I'll take good care of it, and treat it like it's you...!
Whaaaat!? Are you giving this to me...!?
You're a nice guy... I'll gladly take it!
OK
Ngh, what is it? That's a strange thing you have...
Well, if you're giving it to me, I'll gladly accept it!
Oh? You're giving this to me?
Gah-haha! You must be quite skilled if you're more considerate than a team manager!
Gahaha! I'll accept most things if they're free!
Bring them on!
Dislikes
...It's probably not my business, but there might be someone else who wants that more.
You don't have to give it to me, so why don't you think about finding a more effective path?
Ngh... You're giving that to me...
Um...
Yeah, I definitely don't want that!
Hates
Ugh...
Hnnnnnnnnnnnnnnnnnnnnnnnnnnngggghhhhhhhhh!?
This is bad...my heart... H-Hurry up and put that away...!
...
Um, no thanks!

Island Mode

Energetic (XL HP)
Hoooooooooooooooooooooooooooooooooooooooooooo! FULL SPIRIT!
Nekomaru seems to be feeling pretty good...
Overworked (HP 0)
I feel completely overworked... I'm sorry, but I'm going to take a break for a while...!

Hajime Hinata

Island Mode

What would you like to do?
Go meet with someone
Hmm... Who should I talk to?
Spend some time alone
I could really use some time to myself...

Leaving to Jabberwock Park
Should I call it a day already...?
Last Day of Class Goal
So today's the day, huh? I guess I better review everything one more time.
The goal was...[CLASS GOAL] ...

Overworked (HP 0)
Hmm...I don't feel very well... It might be good for me to get some rest...
Day End (on 0 HP)
I don't even have the energy to go out. I'm gonna rest in my room for a while...

Usami

Island Mode

Complete the Class Goal
Okay! You did very well!
Here are some tickets!
Fail the Class Goal
Ugh... Was it a little difficult?
Introducing New Class Goal
The next goal is...
...right here!

Random Item Gift
Hmhmhm.
Since you're all working so hard, here you go.
Okay, have a nice day!
Cleanliness Reaches 0
Ugh! How stinky! This place reeks!
There's no way hope will grow in all this filth!
C'mon everyone! You're gonna spend all day cleaning!

Goodnight Announcement
Everyone! It's night time!
Please get plenty of rest so you can do your very best again tomorrow!
Good night...
Checking the Love Meter
Let's look at how much everyone love, love, loves each other...!
You can raise your Love-Love Level with someone if you use a Trip Ticket and entertain them.
However! You cannot gather Hope Fragments when you do this.
Even if your Love-Love Level is full, it won't mean anything if you don't have enough Hope Fragments!