Tenchi in Tokyo - Season 1 Episode 25 The End of Time

Her plans complete, Yugi is finally ready to bring her crystal domain into the real world, supplanting reality and even freezing time itself! The only thing that can stop her is the combined power of everyone's gems, but before the girls can be reunited, they must first face off against Yugi's servants! Unwilling to wait, Tenchi heads off to face Yugi alone, only to end up getting trapped in an illusory world where he can spend eternity with his beloved Sakuya…