When Ryuu transfers to Hitomi's school, he leaves an immediate impression on him. Curious about rumours of a full-scale tattoo on Ryuu's back, Hitomi starts getting closer to him. Before long, the friendship and fascination Hitomi feels for Ryuu start developing into more, but before he has a chance to come to terms with his feelings, Hikaru appears on the scene.... and he has his eyes set on Hitomi. Rules series Timeline : 1) Please (5 chapters) -- Kiss (MIYAMOTO Kano) -- Kiss After 2) Skies ** 3) Hydra 1+2+3+4 (ch1-4) 4) Hydra 3+4+5+6 (ch5-6) -- Blue Film (after Hydra ch8) -- Heavenly (between Hydra ch9 and ch10-11) -- Real Thing -- Hello Again 5) Lovers and Souls 6) Fragile ** 7) Vanity ** 8) Dreamer's high ** 13) Rules volumes 1 & 2 14) If Winter Comes, Can Spring Be Far Behind? ** 15) Rules volume 3 16)Song Birds ** 17)Another Day on The Planet** 18)Double Trouble** ** = doujinshi also the ones in ( -- ) are doujinshi's