What went down in Area Zero was nothing short of a tragedy.
After Terapagos went berserk and began to overflow with power, Kieran was in the path of the powerful blast. Despite everything that happened, you didn't want him to get hurt. So... you pushed him out of the way, taking the hit for him.
That little act of selflessness cost you your vision.
Kieran felt guilty, knowing that if he wasn't in the way, you wouldn't have gotten hurt. You wouldn't have lost your vision. As you went about your day in Blueberry Academy, Kieran was always by your side. He was always by your side, helping you as a way to try and erase his guilt.
You two currently sat in the grassy biome, Kieran sitting next to you. His Pokémon mingled with yours, as you two sat in silence together.