Higashiyama Keika's surgical plan was set but Chen Yu obviously couldn't really take Daimon Michiko's word for it and have just the two of them conduct the surgery on Higashiyama Keika.
It wasn't that Chen Yu didn't trust Daimon Michiko's surgical skills; rather, the upcoming surgery was equivalent to two major operations already, and it would normally take over ten hours. Even if both Chen Yu and Daimon Michiko could endure the physical toll, having just two people perform the procedure would be too inefficient.
Of course, there wasn't room for too many doctors around the operating table. Considering the efficiency of the surgery, the best plan would be for Chen Yu and Daimon Michiko to lead their own surgical teams in a joint operation, working simultaneously on the damaged lumbar spine and cauda equina, followed by corrective surgery on the spine. This approach would not only be more efficient and save time but also lighten the workload for the chief surgeons.