Thanks for your contribution <3
This love meter system is a bit weird. You says characters get EXP if they are vice-leader. I guess they have to be the number one main vice-leader. I got no EXP on my secondary vice-leaders.
Then, you can only access the Love Meters with girls you've done Eternal Oath but I'm pertty sure I've accessed the love meter of girls without Eternal Oath. I can't confirm right now as the game is under surprise maintenance...
I hope this system will be reworked to get EXP even if the vice leader does not participate in missions. Your waifu is not always a good unit or fit in your teams :/
On another hand, is there some hero to save us for the new super boss?