Loved your post Fenrir. As for the whole trust thing despite being masters of stealth and deception ninja tend to be very honor bond. Anybody who knows anything beyond the common knowledge understands the ninja's honor, and will have a tendency to trust them. But in the case of the two ninjas from different clans, do not mistake respect and professional courtesy for trust. There may be a measure of trust, but that doesn't mean Tyger will be open to a surprise attack and I'm sure Ryu feels the same way about Tyger.