Pokémon Horizons: Ash Is Liko's Teacher

My name is Ash, the top-ranked member of the Masters Eight at the World Pokemon Championships and the first-ever champion of the Alola League. After defeating the strongest Champion, Leon, I once again set out on the road to becoming a Pokémon Master. But now I feel lost. I have grown strong enough, yet I still don't feel like a Pokémon Master. I can't even explain what a Pokémon Master is. So, on Professor Oak's advice, I became a teacher, and my student is Liko.