Huh. I'd assumed that Yoshika was made specifically to guard Miko's tomb during the crucial moment of resurrection. But then with the way it's worded, I suppose Yoshika must have been Seiga's companion for a long time.
Hmm? Yoshika would have also been Byakuren's contemporary too, going by years. Maybe in addition to Kasen, Byakuren might have known Yoshika too? 🤔 And that might just be why she couldn't take the matter to her own fists? Seiga put Yoshika specifically there not to deter just any intruders, but Byakuren in particular.