Also, it's pretty interesting. Nagi ancestor's plan did not foresee Souichiro possessing over 3000 abilities (almost 4000 and it's the abilities of every red feather in the world supposedly). Mitsuomi wanted Masataka to run away as Souichiro's power will eventually destroy him from within, but not before their fight is settled, plus Mitsuomi's crew doesn't have enough data on Souichiro to give Masataka advice on how to defeat him. Ichiyou had only planned for 700 abilities to be absorbed into Susanoo, not 3685, the number Souichiro has).
Kinda weird that Maya and Aya were missing when Souichiro came in.