This is part of the Jenny Series.

Volumes in the series:
1: Jihad (KAWASOU Masumi)
2: Close Memory
3: All Red
4: Gesshoku
5: Yungu Furau
6: Hiito Iisuto
7: GI Kingu
8: Lunatic
9: Soru I Sonbura
10: Crusader
11: Honoo no Tsuki (7 Volumes)
12: Scarlet