Magic Maker - Isekai Mahou no Tsukurikata

Synopsis:

Young Shion carries a secret he’s the reincarnation of a man from another world who died with an unfulfilled wish: to wield magic. Reborn with hope, he eagerly searches for magic in this new life, only to discover that it doesn’t exist here either. But everything changes during a visit to a lake with his sister, where he witnesses a strange, otherworldly phenomenon that feels just like magic. If this world has no magic... could Shion be the one to create it?