𝓣𝓱𝓸𝓾 𝓢𝓱𝓪𝓵𝓵 𝓞𝓫𝓮𝔂 The Exchange Program. Something to make the underworld, celestial realm and human realm closer together. But... What's this? An anomaly from...Teyvat? Now that won't do... let's see how to fix this stray back to his own world... (Basically, Teyvat isn't involved with the exchange program and somehow our darling hydro bb got accepted into the program and has went to the underworld and is now stuck with the brothers, a human, two angels and a ruler with his butler.)
3 parts