UPDATE 21/03/2012: this is the corrected version of 
my tab, a friend made me notice that the keyboard 
main riff was out of pitch (it was an octave higher i 
think) so this is more acurrate and sound more melodic, 
use this tab!!!!!! forget bout my other tab!!!!! I also 
created an ultimate guitar and 911tabs accounts so 
Communication is easier this way! ^^

info

Lead Guitar: The parts done with wah pedal were 
made by tonal comparison with the original song, you 
can check it by yourself.

The guitar solo was made the same way, I made tonal 
& notes comparison with the song played at half speed 
(x0.5) so I think its the most accurate I could ever tab 
XD but there could be some mistakes or notes missed 
by the noise, i dunno, im a drummer, but as i said i 
tabbed the solo the best i could, anyway, check it 
along with the song, and I'll recieve any suggestions or 
corrections to my mail. ^^

Keyboard: CORRECTED IN THIS TAB I checked the 
notes and everything else from the other tab in this 
new version, sorry for the inconvenience,  but now the 
piano part was checked along with the orignial song 
and with a youtube cover however, its still not 100% 
accurate, as before, there are also some high pitched 
notes i had to manage on myself to tab them, but in 
any case, THIS PART IS CORRECT and same as the 
previous tab, I hope it works at least to 'guide' how the 
melodic part is on the song, so its pretty crucial on this 
song, because it keeps the main part of the melody, 
hope it helps ^^ (ps: i made up some weird effects, to 
simulate them just as the song is ^^" i dont know how 
they're made on a real keyboard but check them out)

Rhythm guitar: I made up this part by orientating myself 
on another "kesenai tsumi" tab i found on the web, but 
if you check the song, you'll see this guitar just gives 
backup to the beat of the song, and goes along 
covering the first guitar (this guitar is played by Nana 
Kitade live: 
http://www.youtube.com/watch?v=20515nnPkBE, i 
just transcripted it on my own way ^^)

Bass: I based on the same video as above 
(http://www.youtube.com/watch?v=20515nnPkBE) 
because in the studio(orignial) version, the bass almost 
can't be heard, and it seems to play a "weird" line, so i 
used the live version, it sounds better, its performed in 
a better way, and i also added some octave variations, 
very japanese-bassist style xD so check it out (ps: 
during the bridge between chorus 1 slow and verse 2 I 
orientated on the outro of the live of this song, linked 
above, because on the live this part is skipped)

Drums: Ok..... here's the deal, I've also made up this 
part based on the live 
(http://www.youtube.com/watch?v=20515nnPkBE 
third time!xD) same reasons, cool performance, better 
sounding, and also i made up some fills and variations 
of my own, i think they sound great, if you dont like 
'em, just play along the base rhythm, or mind your own 
business with the drums line! I'm a drummer, I tabbed 
the whole song, and it seems to be this part the best 
hehehe ^^" it is tabbed to its best, so hope it works!
(ps: The outro part was orientated on the studio 
version, its kind of a 'solo', listen t the song and you'll 
see) 

As a final advice, for better performing and checking 
your lines, its all on observing and what you can learn 
watching the live, already linked three times xD.

Mistakes, suggestions or any commentary will be 
recieved to legadomartin_619@hotmail.com (PLEASE 
NOTE: send your mails with subject, because i delete 
any spam or no subject mails)