In Konoha, My Parents Are Still Alive from the Start?!

[Not brainless + No System + One heroine + Slow-paced] Naruto wakes up one morning and discovers that he really has transmigrated to the world of Naruto, but something seems off: the Fourth Hokage and Kushina are still alive?! He was supposed to be an orphan, but now he suddenly has a complete family, and his childhood is far better than before. But... is this still the story he knows? Faced with this unexpected change of fate, will he enjoy a warm childhood, or start planning ahead and set out on the path to greater strength?