Umibozu and Gintoki's meeting with Kagura's boyfriend Dai doesn't go according to plan as he's revealed to be the prince of Planet Titan. Meanwhile, the new couple's relationship takes a drastic turn.
To prevent the spread of their perfect 
spouse's genes outside their own race,
كي يمنعوا انتشار جينات زوجاتهم  
،المثالية خارج جنسهم
Para evitar que los genes de su esposa
no vayan a otras especies,
Para evitar que os genes perfeitos da 
esposa se espalhem além da própria raça,