Don’t mind me if I do!! Another fun question!! I answered a similar question to this awhile ago so I apologize if some things are repeated! (also for Arte/Wakamizu <3 of course!! Thank you giving me the chance to talk about them <3 This is going to be really lengthy!!) oh yeah some characters may have less- as I need to think more of them..,,,,

Here’s the link to the other one if you wanted to see anything I may have missed here!
Already answered ask

Arte

• fashion designer hobbyist (it has always peaked his interest as a kid. He likes crafting but after discovering about idols/celebrities— he became very settled on that. However, he do it as a side job. Or like back up plan. To make his own costumes/stage outfits.)

• One of his first crafts/creations is his headband. He still have his first handmade one but he would remake it for stronger and better improvements. He is very sentimental about it.

• Aspires to be idol but fails many auditions so he trains even harder for next audition. Although Arte does get depressed/frustrated about it, he always picks himself back up. (Oh yeah, he wants to earn his success rather than being known by being related to Esuka’s so it adds another layer to why Arte tries so hard to accomplish his goals.)

• I like the idea that he used to own Pale Moon deck or it was his first deck before Dark Irregulars.

• Arte is very blunt n straightforward person. Although it used to get into trouble with Esuka because of that so he tries to take a step back. But sometimes it slips out. Arte is the type who doesn’t hesitate on confronting someone.

• He’s huge social butterfly and has no problem making friends with people. Although growing up, he never truly found friends that he felt connected to. Until adulthood where he found friends he was comfortable with. (Unless if we count team misfits au)

• Bickers a lot with Shouma. Probably the only person who is more open about his dislike for Shouma. frienemies if you will.

• Closest to Satoru, Verno, and Gaily.

Noa

• Non-binary + Arata/Makoto/Noa polycule

• One of his hobbies is dancing!! While at it, I mentioned before, I think I said he would like kpop/jrock— but tbh he’ll be open to any type of music genres but he especially loves music with a lot of beats. Whether it’s to keep him.

• If Arte found Noa dancing, he would happily joined him in it. (Tbh he would love to drag his friends into dancing with him, even if they’re not good at it but always does it for fun.)

• Only child. So he always wanted a sibling so often would try to play the older brother role to some of his friends. Saori feels safe being next to him!!

• Omg…… stars… I honestly Noa and Aichi would’ve had a great conversation about the stars. & Chrono joining in the conversation. Although, he personally can’t go into schools for it as it’s very complex and hard to learn- he loves learning about the constellations and the history/facts about it!!

• I want a post series Ibuki & Noa friendship mainly bc I think it’ll be funny to have Ibuki deal with mini version of Ren.

Saori

• I think if Saori had one headphones that was not broken, or/and playlist. He’ll listen to the songs that Dumjid listened to before to feel connected to him. Even if he didn’t like the music genre before, he’ll grown to appreciate it and like the music.

• Saori struggles in class, good student but finds his classes difficult- he goes to Taiyou & Hiroki for help for his homework. If Gaily isn’t available to help him out.

• I think I mentioned Saori’s hobby being photography? I think it’ll suit him really well! There’s just something cute about him going from only taking photos of nature/scenery to it becoming mostly his family and friends….. album book of just his loved ones.

• handles spicy food really well while Taiyou and Hiroki cannot handle them AT ALL.

Gaily

• I did kinda imagine her with triplet siblings but initially I thought of her being drawn to Saori because of his resemblance. (Admittedly I’m little torn if I want to make them actually related it just friends with siblings dynamic but I think I’ll just go with siblings since couple of people liked this idea!!)

• Not really a fashion person but she likes vintage clothing. I think it’ll suit her a lot.

• HER FAVORITE BUG IS ROSY MAPLE MOTHS. it’s literally one of her favorite lil creatures ever. (If you’re okay with looking up bugs, look at them. It’s so cute!!) while Gaily and Wakamizu feel lil awkward approaching each other, this is one of the few things they can collectively bond over.

• I love Arte + Verno + Gaily as a trio. I think it’ll be really cute friendship. And sometimes Verno would commission Arte to make an outfit that she or they designed together as a special gift for her. Or they just gift her hairclips. They love to spoil her even though Gaily have told them not to spoil her too much or spend money on her.

Wakamizu

• He used to be a social outcast when he was in school. Many people didn’t like his personality or found him an odd or bossy/teacher’s pet. However, Wakamizu didn’t mind this too much— he found friendships to be troublesome and just wanted to focus on his studies.

• Wakamizu and Shouma were academic rivals(?)- it’s more like Wakamizu tries so hard to get the best possible grades (with bunch of those sticky sticker bookmakers things on textbooks and the most organized notes, ONLY using any of his freetime to study. So much so that his parents are worried about him.) vs Shouma who effortlessly gets amazing grades somehow. It never fail to piss off Wakamizu.

• He’s really observant of others. He is the least sociable person but after watching everyone from afar, he picked up on certain behaviors/mannerism/habits. He’ll notice something quickly if something is up.

• Picked up makeup from his mom when he was a kid. It was one of the cute bonding moments he had with his mother. (I hc him to have really good relationship with his family.)

• Used to really close to Shouma & they were like their first genuine friend. They were best friends with Shouma in highschool but due to unforeseen circumstances, they cut ties with each other (it ended horribly) and those two swore not to bring it up with anyone else. Now they have bickering relationship with complicated history. (I kinda been working on this storyline but it needs like a lot of editing. This is a sum up but ALOT OF shit happens.) but they’re still somehow friends despite this?? Idk how to explain it. But they’re ok with each other, I think.

• This is probably around the time if he lives independently. Funny idea that he doesn’t invite anyone to his room because he owns a pet spider that people would immediately freak out if they saw it. (Regrets the first time he took Arte to his room. Spoiler: he fainted.)

• Autistic (w/ special interest on bugs) probably wanted to become an entomologist at some point when he was a kid.

Ruga

• A cute idea that I couldn’t get my mind off of. I did mention that I can see Ruga living in a beach house and some little kids come by to greet him. It would’ve been cute if Saori was one of the kid who met him when his family were on vacation. Although Ruga isn’t too good with kids but Saori insists, he just wanted to talk this cool man with a fishing rob!! Wanted to befriend him.

• I need to rewatch the v series to think more for him.

• Ngl I can see him a really good cook with seafood. Ryutarou always suggests that he should become a chef and his response as been “no.” followed by, “get out of my house.”

• This probably isn’t a headcanon but I would love to see how Ruga and Jaime would interact. The most serious guy ever w/ hyperactive friendly kid.
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And as for the Wakamizu/Arte headcanons

• nonbinary boyfriends (Arte as genderfluid + Wakamizu as nonbinary or agender. I haven’t decided on which one LMAO)

• Arte met Wakamizu at the party and immediately fell in love with him at first sight but desperately wanted to know about him better. Wakamizu initially didn’t like him at first as he found him distracting and annoying. (Didn’t understand why he was so obsessed with idols or with becoming one.) but after awhile, his opinions of him changed. Learning about Arte, he was hardworking & very determined. (not only with dancing, singing, songwriting, making clothes,etc but with maintaining his physical appearance) — He found him admirable. Wakamizu do sometimes worry about him since he can push himself little too much. Arte just fell in love with him harder as he got to know him moe personally.

• They both realized that they were both similar yet different in a lot of ways. Which makes them understand each other easily but also noticing their own flaws through each other and improving on themselves. But with their drastic differences makes it more fun with being each other. If that make sense. I’m rambling at this point.

• They’re both perfectionist but in their own ways. Although, Arte is more worse than Wakamizu, as he frequently overworks himself until he ends up injured or ill. Arte is much more harder on himself with his expectations. Wakamizu is only able to managed it well because he can’t work effectively if he is unwell. They both can also can be sort of bossy when working with other people sometimes— whether it’s unintentional or not.

• They’re both busy individuals that forget to eat or drink something. They would usually order takeouts or just straight up coffees. But because of that, they somehow balance it well because they make sure to look after eachother.

• However in terms of cooking, I’d have to say Arte is a better cook than Wakamizu- mostly bc Esuka would forcefully teach him to cook more healthier and full potion meals. To add onto it, Arte is stricter on his diet to maintain an appealing body.

OKAY THIS IS WAY TOO LONG BUT IF YOU READ ALL OF IT, THANK YOU SO MUCH.