A knight of the Kingdom of Grandshelt whose talents earned him command of an airship alongside Rain. Lasswell is a tireless worker, entirely devoted to his duties and training. He holds the utmost respect for Rain's father, Sir Raegen, once a prominent knight of Grandshelt himself. Lasswell lends his strength to Rain as a way to honor the memory of his hero, while struggling with the fact that this prestigious lineage is not his own.
A knight of the Kingdom of Grandshelt who was raised alongside Rain by Rain's father, Sir Raegen, who also trained Lasswell in various skills. Out of respect for everything he had been given, he has a tendancy to worry about Rain and his wellbeing, though he seems to be hiding some dreams and hopes of his own. His beloved sword, Purple Lightning, is the last remaining connection he has to Sir Raegen.
A knight of the Kingdom of Grandshelt who was brought up alongside Rain by Rain's father, Sir Raegen. For Halloween, Lasswell has chosen to dress up as a vampire, completely devoting himself to his character. Now he seems to have different abilities than the ones he is normally able to use, but it is unknown whether or not this was made possible by his costume.