Ta-daa! Secret character No.1, Taira Kenta! Taira is a rather shy, awkward boy in your class whose confession you can only get by following a very specific series of events. Miss one and it’s good-bye to love.
Fortunately enough the steps are easy enough to follow and several of them are automatic so you know you’re on the right track. I got my info from GameFAQs, but GF threads are known to disappear, so I’ll just reproduce the steps here so you can get him if you want. Remember, you can’t get him on your first playthrough, only subsequent ones.
1st Year
April 4th (04/04) – First Day of School
Before you meet Mr Oosako, the teacher, you need to touch him in class once. He’s the one with the “x” on his back on 
the far right hand side of the touch screen. See picture on the right. After you meet Mr Oosako, you need to touch him again. He’ll then introduce himself…and get teased by his friends (if you miss this, start over. You’re screwed).
June 13th (06/13), Sports Day
During the folk dance, after you’re done dancing with all 3 or so of the main characters, he is the guy in the background dancing with the other girl. Touch him.
December 7th (12/07), Exams
Automatic Event.
December 12th (12/12)
Automatic Event, follow up from Dec 7th.
February 13th (02/13), Valentine’s Day
As you’re leaving school, you will hear Taira being teased by his friends about Valentine’s Day. He’s the guy in front of the shoe box near the center of the touchscreen. Touch him.
2nd Year
April 5th (04/05), First Day of School
Automatic event.
June 12th (06/12), Sports Day
Just like in the first year, you need to touch him after you’re done dancing with all the main characters.
September 13th, School Trip to Hokkaido
The bus scene, on the very first day. You need to touch the guy in front of the bus near the center of the touch screen.
October 1st
December 1st
January 8th
On the first two dates above, he will ask you to walk home with him after school. Say yes. On the third date, you can choose to ask him to walk home with you. You have to choose to, otherwise you’ll miss him.
February
Automatic event. You may need Rose Queen parameters (130 or more in everything) to trigger this, not sure.
3rd Year
April 4th (04/04), First Day of School
Automatic event.
June 11th (06/11), Sports Day
Touch him after you’re done dancing with the main characters.
October 30th (10/30), Preparation for Culture Festival
You need to have Rose Queen parameters going INTO this period to trigger Taira’s Culture festival event. 
Prepare with him for the play. Choose the Culture Festival event every single day, then enjoy the cute CG! Btw, you have to get chosen as Rose Queen to get his ending, so stay on top of your stats and make sure no guys detest you.
December 1st
After Mr Oosako’s little speech, you will see the same background as you did first year Valentine’s Day (in front of shoe boxes, leaving school). He’s the same guy in front of the shoe box. Touch him and there is a conversation event.
If you complete all of the above, you should get Taira’s save icon, and you should be in the clear.
The jury’s still out on whether getting any of the main guys to Tokimeki mode will override Taira’s ending, but just to be on the safe side, try to avoid going on too many dates with the other guys. It might be a bit hard because once your stats start to rise, the other guys start to like you even without you doing anything. To worsen matters, I was aiming for Rose Queen so I decided to be nice to everyone – buying them birthday presents, walking them home after school, etc.
After a while Ruka suddenly decided he was in love with me and started asking me out on dates. Geez, Ruka, haven’t you had enough? If it was Konno or Kou asking me out I’d have been in real trouble, but Ruka was easy enough to turn down. Oh, but I finally figured out why his grades are so skewed. It turns out he read all the textbooks from cover to cover because he was bored in class. That makes exams easy for him. Math, he’s just good at math, but reading the textbook doesn’t help him in Japanese, which is why he always gets terrible grades in that. Well, that’s better than Hazuki randomly falling asleep, I guess.
I spent all of yesterday working on the Taira ending instead of playing more Radiant Historia. I don’t know about that game…wait, mustn’t make another of my snap judgments. Anyway, since I wasn’t dating and rarely went shopping on the Taira route, I had many more days to work on my stats, so they were ridiculously high by the end. Over 200 for everything! Naturally I decided to go to a 1st-class university at the end, only to find out that Taira only got into a 2nd-class uni. Oh no, poor Taira. With him in another school and me and Konno together in one place…tut tut, it’s all over for you, dear boy. >:-D
I also took the chance and started the route for another secret character, the novelist Aizawa Shougo. But this time I’m really going to play Radiant Historia, so the report on cranky old Aizawa will have to wait till later. See ya!
TAIRA! 😀 Yes, Taira is a bit difficult for people who don’t really know what they’re doing, but he is definitely worth all the trouble. :3 I find it absolutely adorable that he is constantly trying to get one-on-one time with the main heroine and yet everyone keeps interfering or keeps making fun of him. XD XD
I felt sorry for him that he never got to dance with the heroine at the school festival. He was a decent guy, but a little too bland to be a main guy, which is probably why they made him a secret character.
😮 i tried poking him but nothing happened.. :/ wth?
When was this? Firstly, you can’t get him on your first playthrough so don’t bother. Secondly, make sure you’re poking the right guy. He’ll have faint ‘x’ mark on his back.
At the beginning you need to poke him twice: once before the teacher arrives and once again after the teacher introduces himself. There’s only a small window for both pokes, so don’t miss them. Nothing will happen the first time you poke him, you need to poke him a second time for him to introduce himself.
i tried poking him many times on the first day and nothing happened :/
what do you mean on my first playthrough? 😮
First playthrough means the very first time you play the game, before you get any other ending. You have to play it once, get at least one ending (it can be a bad end, doesn’t matter) and then play it again before Taira becomes available.
ohh!! and if i got Taiyou’s ending… can i get his ending?
Yes. If you’ve gotten at least one ending before, you should be able to get Taira just fine. Poke him as soon as you enter the classroom on the first day of school, before Oosako appears. He’ll say “Hm? What?” Then poke him again next time you get and he should talk to you.
oh! thanks.. :3 i didnt know that you need to get someones ending first! xD now i got him thanks :3
You’re welcome. Enjoy!
your awesome :3
I’ve been doing a lot of searching and just to be sure: There is no way to get Taira’s route on the PSP version is there? I’m thinking they just switched out Taira for the PSP version’s secret chara which they call “an extra secret character” but not really “extra” if he was switched heh…
Anyway, if anyone can answer this, I’d appreciate it~
Sorry, I wish I knew, but I haven’t played the PSP version. I did a quick google and got this wiki: http://www4.atwiki.jp/premium3rd_story/
According to them, Taira is still in this game: http://www4.atwiki.jp/premium3rd_story/pages/93.html
Maybe the requirements for getting him have changed. It involved a lot of tapping on the DS, and the PSP has no touchscreen so there’s bound to be something different. Follow the instructions, remember you can’t get him on a first playthrough and good luck.
In the PSP version, Taira will pop up if you press the square button.
Thanks a lot. I hear an English patch is out for the PSP version, so that must be what everyone is playing.