this is just a thought, i personally think there should be a sort of date system similar to some of these gacha games on mobile so say there is 1 character that you like most or prefer say elli you could get a toy ring or something stupid like that from vanilla for 10,000 or something and you can give it to her which will give you a special H-scene or a bonus but i personally like the idea that the character you choose to go with you to fight the echos and an intimacy bonus or sex/H-Scene just an idea tho (it would be a one use thing ( doesn't have to be)) but you can still get the other characters scene but you have to get the ring from a rare drop or a gacha machine like in the old con-Quest (old characters can be excluded depending on the next zone etc etc)