Despite the content of their relationship, the delinquent Towa Aikawa is still a "friend" of the Student Council President, Mikado Shirahane. But today, Towa gets to sleep-in at Mikado's house for the very first time! Could their relationship advance into "lovers" now...!?List of Warui Series:Vol 1 Warui Koto Shitai [1-1]Vol 2 Waruiko Demo Ii? [1-2]Vol 3 Kirai ja nai Kedo [2-1]Vol 4 Koi Ja nai Kedo [2-2]--- Warui Koto Bakkashite Gomennasai [1-3 &/ 2-3]Vol 5 Warui Yatsu Demo Ii [1-4]Vol 6 Mujihi na Otoko [3-1]Vol 7 Warui Koibito ja Dame? [1-5]Vol 8 Kare ja nai kedo [2-4]Vol 9 Mujihi na Anata [3-2]Vol 10 Sunao ja nai Kedo [2-5]