^Answers :
- It's already explained in chapter 1, after getting ESP but nothing is happening, he realized what he actually wanted is to be dragged into unordinary. Using ESP on normal people and being a kuzu is not his style. I see no problem on how he contacted Shiori since he already stalked her and know that she has Mahou Shoujo Syndrome
- Cryptocurrencies, NGOs, donation programs? What is this? Fundraising?
- The stalking selections were done in months. Touka was in broken home and Shouta is chuunibyou so they easily recruited
Spoiler:
- Later the MC and Vava created another organization, Tsukuyomi, to deal with the underworld
Amaterasu and Tsukuyomi, get it?