Lin's friend, Airi, is being stalked. The three brothers immediately come to her aid, saying they'll take care of the stalker. They sneakily follow Airi around and soon find out it's not just a stalker that follows Airi around...
If we had abandoned him,
Si lo abandonábamos, el derecho de
Si lo hubiéramos abandonado, el derecho de trabajar en Ryuryuken habría sido nuestro.
Se não tivéssemos feito nada, a chance 
de trabalhar no Ryuryuken seria só nossa.