I Transmigrated, but Why Am I in Balala the Fairies?

The first 20 chapters are mostly setup, so impatient readers can skip ahead to Chapter 20.

Lu Cheling was born into the world of Balala the Fairies and came with a daily sign-in System. When he signed in and received the Star Method, he thought he had arrived in a cultivation world. It wasn't until he met Ling Meiqi and Ling Meixue that he realized this was the world of the fairies! A cultivator at the Starsea Realm, he watches the magical girls and boys run around together and decides to grow stronger through sign-ins while using cultivation techniques to "gently intervene" in the story. When dark magic meets the power of the stars, and Gulanla faces the ruler of the star realms, this clash between worlds is destined to thrill everyone!