ocaml, 229 bytes

Result

AC

Duration

692ms

Code [DL]

open List
open String
let p=print_endline
let l=ref 0
let rec r()=try(let s=read_line()in
if!l=0 then(l:=index s 'T';p s)else p(try(let i=index s 'K'in make i ' '^"K"^make(!l-i)'*')with _->make !l ' '^"*");r())with _->()let()=r()

stdin

                 T                                
                                                  
                                                  
                                                  
                                                  
                                                  
                                                  
                                                  
                                                  
                                                  
                                                  
                                                  
                                                  
                                                  
                                                  
                                                  
                                                  
                                                  
                                                  
                                                  
                                                  
                                                  
                                                  
                                                  
                                                  
                                                  
                                                  
                                                  
                                                  
                                                  
                                                  
                                                  
                                                  
                                                  
                                                  
 K                                                

stdout

                 T                                
                 *
                 *
                 *
                 *
                 *
                 *
                 *
                 *
                 *
                 *
                 *
                 *
                 *
                 *
                 *
                 *
                 *
                 *
                 *
                 *
                 *
                 *
                 *
                 *
                 *
                 *
                 *
                 *
                 *
                 *
                 *
                 *
                 *
                 *
 K****************

stderr

strace