This chapter... was god damn amazing. One of the best chapters I've seen in KamiNomi for a long time.
I always had a feeling that there would be some kind of meaning to the title, 'The World God Only Knows', and it is finally explained in this chapter. Fuckin legendary.
I thought series was kinda getting loosen after vintage arc and also thought time travel arc is kinda out of place. But, damn Wakaki-sensei. You are pure genius.