@Xeiyenreishawell i missed alot, ok so Hayato can go 3 ways when it comes to Tsukiko. (also i think he'll bump into her when lost in thought at the start of the morning, on another note where would you place Tsukiko's dorm room in comparison to Hayato's)
A. Hayato will end up in a relationship with Tsukiko but not intentionally
B. Hayato ends up telling her what Shinrei asked him to do, and talks about Hayate's life situation like he always would (unlikely)
C. Hayato ends up asking Tsukiko to be Hayate's friend even though they are in different dorms and ignores Shinrei's request (only if i want to focus on Hayate for the moment and right now Hayato needs a little more attention)
as for Hayate and Shinrei (i might as well while im at it)
Hayate would notice his cold behavior isn't because he is a bad person but because he is suffering and would try everything to help him out and for once reveal her true emotions after being alone all the time (don't think i need to play this card plus i like her as a active and cheery person anyways)
Hayate recognizes Shinrei's Identity as a professional duelist, and offers to help keep his identity a secret by suggesting to color his hair black and start pretending to be hayato (because i can picture those 4 looking the same without their ponytails just different color hair)
LOL, kind of like Yuya/Yuzu and their counterparts, eh? He likes his hair color and I'm not entirely sure he would like to change though black is not a color he has a particular problem with. He may keep that one in mind and as for Tsukiko she is very stubborn about her hair. She likes it the color it is now though for her own amusement and pleasure she might dye it black to see the reaction on the students faces. Tsukiko is probably one of the prettiest girls in the school and her brother Shinrei is one of the most handsome hence why those two have a huge fan club. Only reason the two don't have suitors yet is that they don't really make enough contact with the outside world so they remain mysterious. Tsukiko is the beautiful girl who looks exactly like a princess from fairy tale and Shinrei looks like the pretty boy that girls fall over themselves for.
Not particularly worried about Angelo's character since he is pursuing Ethel. Vincent on the other hand might try some perverted attempts to flirt with Tsukiko. That will make her brother mad because he hates it when people associate her as "a flirt" when she isn't one at all. Tsukiko might play along but least when you expect it is her paper fan over the head for being stupid and annoying her.
I'm sure she will have suitors but that will play into the later stages since right now like her brother she has no actual love interests in mind. If she ended up with Haas in the end that would be a very unusual pairing; however, Haas has a sense of humor, is an easy-going laid back guy and is goofy which are traits she does like. She doesn't know about Vincent's perverted approach to women, but I'm sure when she finds out she'll keep her guard up around him. I just hope Vincent doesn't develop Brock (Pokemon) Syndrome and have to get lovey dovey with every girl he sees. Vincent has as much of a chance as Sunohara had with Tomoyo. I didn't mind Sunohara since he was a pervert that never realized he was one. Vincent is like that one guy from Girls Bravo who has a major crush on Kyrie but he won't admit because he is afraid Kyrie might try to kill him if he did. That will never happen with Vincent because those kind of people bemuse her and are a major turn off.
Well, he said to be her friend. If he entered into an actual relationship with her by choice later on that would be against his request.
As for her dorm room placement you could say it is right next to, not far or away or even right across from hers.
Well that might work and it could even work if Haas gains interest in her since he is a goodfy kid with a sense of humor. Tsukiko is complicated when it comes to her emotions since her attitude can change on a daily basis. She can be nice the first day and the next day she can be cold as ice. She had to get up early so she might be a little moody today though if a boy saw her naked they would probably have to go the infirmary after she was done with them. She has the Kyou state of mind when that happens "erase it from your mind" and then what ever martial arts move she chooses to use. She has somewhat of a brother syndrome tending to cling to him to escape her own loneliness.
She might look like she's always active and a cheerful person, but that is only toward her brother because she is tired of him being so down and gloomy on himself. If you saw he had that flashback where the accident happened between him and his sister where you could relate toward it to how he has ended up now. He is far more protective of her than he was before. Her attitude can change on a daily basis because she is so depressed but she hasn't gone off the edge of despair yet neither her brother.
Shinrei wants to keep his professional dueling status a secret because he thinks it would influence the Duel Tower in the wrong way. He is also now the CEO of his father's company Ikushirou Enterprises Ltd. but he keeps that secret too. His father mysteriously disappeared not too long before he joined Duel Tower. It was right after he returned from filing the enrollment for his sister. They requested too that he join and that they'd would use his status to give her a free pass but she would have to work from the bottom up and that he would be automatically assigned to the higher tier first year dorms.
Edit: Getting Tsukiko to reveal her true emotions and ripping away her emotional mask she wears is going to be very difficult and could leave her with emotional scars when you do so beware.
Most people misunderstand Shinrei and think he's an asshole by nature which is untrue. He has a cold exterior which exactly has to do with his past. It grew on him over the years too. That is all I can say about the two twins without *gasp* spoilers. No juicy topics for you, Maisy.