Japanese name: フル・コン [Furu con]
English name: Full contact
Mangaka : KITAHAMA Kabuto [北浜 かぶと], MINAZUKI Shinobu [みなづき 忍]
Publisher(s): JIVE
Length: 6 vols (complete)
Genre: comedy, action, martial arts, shounen, sports
Description: [from Baka-updates] Fifteen-year-old Otawa Ryuuichi decides to train in karate after being dumped by a girl who only liked strong guys.
Link download:
Vol 1
Vol 2 Vol 3 Vol 4
Vol 5
Vol 6