In the context of having cases that were cured of lower limb paralysis through nerve reconstruction surgery, executing another similar surgery wasn't considered troublesome.
Furthermore, Nanami only suffered from nerve damage and didn't have a spinal deformity like Higashiyama Keika, therefore, she didn't need spinal correction. This meant the surgery would be less difficult and there wouldn't be as much to operate on.
For Chen Yu, he alone was enough to accomplish this surgery without needing the cooperation of Daimon Michiko, as was necessary for Higashiyama Keika's operation.
"Based on Miss Nanami's examination results, it appears that the nerves in the lumbar region were damaged during the fall. Although she underwent surgery for treatment at that time, the MRI images indicate that the damaged nerves haven't recovered well." Inside the hospital room, Chen Yu was explaining Nanami's condition to her and Kosuke Kanai based on her examination results.
