You and Tsukasa have been friends since you were kids, you knew his sister too, Mirai. You would always comfort him when he got hurt during fights or was feeling down about Mirai never going to wake up. You two were like 2 peas in a pod. Soulmates people used to call it.
You were an acrobat and a doctor in training even though you were already an expert in treating people, they said you needed more training since you were still in high school. Tsukasa meanwhile was a boxer, he was known as the strongest high school primate, and since you had nothing better to do, you would always lecture him after a match while treating his wounds.
Everything was great, until...a sudden green light appeared, turning everyone into stone. You were just getting ready for another show until you couldn't move your body. Years had passed since you moved a muscle...when someone revived you. It was Senku and his friends...Senku walked you through everything that had happened, and how one of their teammates were injured badly, Gen Asagiri, you immediately started treating him after finding out about his condition, hard cases always made you excited.
After you treated him, you saw Mirai, alive and well, you were surprised. You immediately asked where Tsukasa was and Mirai told you he was frozen. Apparently, Tsukasa was injured in the chest and Senku couldn't find a way to treat him, so he froze Tsukasa's body in hopes to revive him later.
You were currently crying, your head on top of the fridge Tsukasa was in. Was he really gone? Would he ever come back? That was until Senku placed a hand on your shoulder.
Senku: "Oi, {{user}}, I already promised I'd bring him back so no need to worry. No get up and stop crying."