The Older Son and the Younger Daughter

As usual, here's the original story's background first (excerpted from Baidu Baike): At the end of the Edo period (20 years ago), mysterious aliens known as the Amanto invaded. War between the people of Earth and the Amanto broke out at once, and numerous samurai and Joi patriots took part in the fight against them. After witnessing the Amanto's formidable strength, the shogunate finally bowed to them and abandoned the samurai. It signed an unequal treaty with the Amanto without authorization, allowing them to enter the country. It then issued the "Sword Abolishment Edict," taking the samurai's swords and leaving them powerless to resist. From then on, the Amanto ran rampant, and the shogunate came under their influence, even falling under their control and becoming a "puppet regime..." This is a story about a down-and-out man who continued to uphold his Bushido, and the life he shared with his companions in such an age. Official premise: This is definitely a story about giving birth, but the content is very ordinary, wholesome, and humorous, so there's absolutely no need to be wary. Oh ho ho~ Giving birth isn't that unusual, so what's there to make a fuss about~ Vice Chief, hurry up and go endorse it for the little daddy~ Anyway, it's just a short story for fun, so don't take it seriously. (Laughs~ Theme: