Info and QaA thing

What should i do? (English)

I don't know what should I write! Halp! Pls! Oh and if i would do something... the chapters would be really short... 'cause... u know... I am starting...

Soooooo... should i do Undertale×reader or TheCraftingDead×reader? Tell me in the comments... and tell me what characters should i write about? Thx for reading this! Byeeeee~