Yu-Gi-Oh, The Chosen Ones

Kaiba is now friends with Yugi and the gang they get a letter asking them to volunteer at a construction site in the desert where Kaiba receives a gift from something and tells a story about a girl he met a year ago.
she disappeared where is she read to find out.

This is not a lemon I refuse to write those so don't worry. Also might seem graphic near the end of chapter 1 but don't worry I will explain that in later chapters.