There's one thing that already explained in the earlier series but I vaguely remember about it.
Spoiler (mouse over to view)
1. Katsumata was having flashback with pregnant woman, that's his wife right?
2. What did Katsumata did in the past? I vaguely remember he killed his family..
3. If he killed his family, so his motivation is to prevent his tragedy to repeat again?
2. What did Katsumata did in the past? I vaguely remember he killed his family..
3. If he killed his family, so his motivation is to prevent his tragedy to repeat again?