Your Distant Letters~ (Amaguji Soulmate AU)

After the seasonal killing game, Rantaro Amami is the most popular out of everyone. Working at a coffee shop, having fans, and attending school. Although he was the ultimate adventurer, the laid back life was just what he needed. He seems to be chill with everything, even the cliche soulmate regulation. He believed in the regulations, even though Rantaro did not think he had one. That is because nobody replied to him ever since he tried. But one day, to his surprise, he has gotten a letter back after years of waiting. Now his life will be taking it's next turn. Rantaro would look for his soulmate until the end. Other troubles follow him however. After multiple hints, help from his friends, and unexpected peers, Rantaro is now one step ahead of everyone. Now, he will find the person who sends him those distant letters.

(Not a red string soulmate AU :>) ~Anni