Hakui no Senshi S01E04 - Episode 4

Natsumi (Asami Mizukawa), who is in the process of marrying, gets excited about a long time joint party with handsome trading company men. However, there are not enough members, and Haruka (Ayami Nakajo) will join in a hurry!
Haruka who thinks this is the 'first joint party'. Natsumi is worried that Haruka is actually a former Yang, but ...!?
One day, Saya (Ririka Kawashima), the daughter of Honjo (Ikki Sawamura), is hospitalized for appendicitis. Saya, who has lived with her ex-wife Miki (Reika Kirishima) since she divorced seven years ago, has become a high school girl with perfect makeup and nails!
Haruka and Natsumi are swayed by Saya, who causes problems with her free-spirited behavior as soon as she is hospitalized. The main castle, Honjo, just flutters because he doesn't know how to interact with Saya. And Natsumi, who has begun to be aware of Honjo, is shaken by the unexpected appearance of her ex-wife in Honjo ....