Hydra original dj. Involves Ryuu's departure from the school before he met Hitomi.<br />
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Rules series Timeline : <br />
1) Please (5 chapters)<br />
-- Kiss (MIYAMOTO Kano) <br />
-- Kiss After<br />
2) Skies **<br />
3) Hydra 1+2+3+4 (ch1-4)<br />
4) Hydra 3+4+5+6 (ch5-6)<br />
-- Blue Film (after Hydra ch8)<br />
-- Heavenly (between Hydra ch9 and ch10-11)<br />
-- Real Thing<br />
-- Hello Again<br />
5) Lovers and Souls<br />
6) Fragile **<br />
7) Vanity **<br />
8) Dreamer's high **<br />
13) Rules volumes 1 & 2<br />
14) If Winter Comes, Can Spring Be Far Behind? **<br />
15) Rules volume 3<br />
16)Song Birds **<br />
17)Another Day on The Planet**<br />
18)Double Trouble**<br />
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** = doujinshi<br />
also the ones in ( -- ) are doujinshi's