Born with Chuunibyou

What this book tells is that after the protagonist obtained a strange shuttle system, he lost his family and his original life due to improper use. In order to find everything he lost, he committed suicide in exchange for traveling to the world of immortal cultivation in a high realm. He originally wanted to obtain great supernatural powers and recover everything in the past. Unexpectedly, his physical body was reshaped by the system, and he ended up pursuing the supreme path in the world of immortality with an ordinary body that had lost his previous memories.