This query likely refers to the MMD (MikuMikuDance) creator known as kamihikoki
When the day came that Kira's hands grew slow and her daughter, already a woman with two children and an attic full of storybooks, asked what to do with the terminal, Kira simply handed over the spool of thread and the list of patterns. "Teach them to look closely," she said. "Teach them to stitch what matters." kamihikokimmd link
Kira remembered scraps of bedtime tales, whispered about inventors who folded doors into postcards and sailors who threaded strings through maps. She had always believed those stories were for children. Now, confronted by the living softness of her grandmother's kitchen, she believed them all at once. This query likely refers to the MMD (MikuMikuDance)
(Japanese for "paper airplane"), who is recognized in the animation community for high-quality, stylized character models. She had always believed those stories were for children