During a test flight of the Lemming , Sei is killed by its special Lemming System .
What he did n't realize is that Sei 's mother , Madam L , is an engineer who had designed the deadly and powerful Lemming mobile suit .
During a test flight of the Lemming , Sei is killed by Sei 's special Lemming System .
What he did n't realize is that Sei 's mother , Madam L , is an engineer who had designed the deadly and powerful Lemming mobile suit .