nine star burden

It is a parallel world that is full of Star Power. Star Maps, Star Techniques, Star Pets, and the Awakened are rampant. Jiang Xiao, whose soul travelled to this world, has a special internal Star Map within his body and goes on to become a Medical Awakened.
He initially wants to become a happy healer who can help his team members, but he ends up being labeled as a burden to the team.
The entire story begins from the first week of High School.
It begins... from that slap...