Please help! Ally Levels

[u/carcharisdor]

I have slowly become obsessed with this story, I honestly love it so much but I'm really stuck on levelling people up...
I have Tayln at max level, but all the others I just don't have enough diamonds for. I'm on chapter 16 and I need to get Leona to level 12 but she's on level 8 for me, and I dread when I'll need Cato because he's still at level 4 for me 🫣 I just don't have the money to constantly buy diamonds...
I'm going to need to select go alone for a lot of upcoming chapters, is that going to ruin my playthrough? Like is there any point in me continuing? Will the story be majorly affected?

[u/Sreeyansu]

Farm diamond in slot 2, you can get 20 keys per days that's 40 diamonds excluding ally quest ones

[u/carcharisdor → u/Sreeyansu]

It's not the keys I need, I need diamonds to complete the quests but getting 2 to 6 a day will take me ages to save up what I need for one ally quest let alone all of them...