Zenderman.

Dr Monja is a scientist, who is curious about the nature of the legendary "Elixir of Life" which grants the user eternal lifetimes and forever youth. He built a device called the "Time Tunnel" in order to let a team of youngsters to start a quest down the timeline and various spaces to find an exact answer. The Akudama Trio, however, is also seemingly after exactly the same thing. Who will get it first?