python3, 114 bytes

Result

AC

Duration

848ms

Code [DL]

i = input().find('T')
while True:
 print(' '*i+'*')
 d = input().find('K')
 if d>=0:print(' '*d+'*'*(i-d+1));break

stdin

                   T                              
                                                  
                                                  
                                                  
                                                  
                                                  
                                                  
                                                  
                                                  
                                                  
                                                  
                                                  
                                                  
                                                  
                                                  
                                                  
                                                  
                                                  
                                                  
                                                  
                                                  
                                                  
                                                  
                                                  
                                                  
                                                  
                                                  
                                                  
                                                  
                                                  
                                                  
                                                  
                                                  
                                                  
                                                  
                                                  
                                                  
                                                  
                                                  
                                                  
     K                                            

stdout

                   *
                   *
                   *
                   *
                   *
                   *
                   *
                   *
                   *
                   *
                   *
                   *
                   *
                   *
                   *
                   *
                   *
                   *
                   *
                   *
                   *
                   *
                   *
                   *
                   *
                   *
                   *
                   *
                   *
                   *
                   *
                   *
                   *
                   *
                   *
                   *
                   *
                   *
                   *
                   *
     ***************

stderr

strace

10    execve("/bin/sh", ["/bin/sh", "/root/script", "/volume/CODE"], 0x7ffd871c9860 /* 7 vars */) = 0
11    execve("/bin/cat", ["cat", "-"], 0x565333837d38 /* 7 vars */) = 0
12    execve("/usr/bin/python3", ["/usr/bin/python3", "/volume/CODE"], 0x565333837d50 /* 7 vars */) = 0
11    +++ exited with 0 +++
10    --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
12    +++ exited with 0 +++
10    --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12, si_uid=0, si_status=0, si_utime=2, si_stime=0} ---
10    +++ exited with 0 +++