Healing A Cracked Shell

Raph has been dealing with his cracked shell alone, not wanting to bother anyone with the pain he has thanks to the injury. One early morning, wanting to get in extra training, Raph runs into Leo, who notices Raph's unhealed shell in not-so-good condition. This leads to Leo helping out Raph by patching up his shell. Not tcest. 2k14 verse.