[redone2002]

Can I ask about the plot of this? Is this the comedy or romantic manga? and Is there only one main character? ฏนำห the woman in the pic is another main character?

Seeing as how this question was long ago, I don't know if you learned more about the manga, but let me answer each question (spoilers):

1. Men just started getting pregnant out of nowhere, but women can still get pregnant. Kentaro Hiyama is a man who becomes pregnant after spending the night with a female journalist name Aki Seto. Most of the manga is centered on Kentaro trying to establish a restaurant that caters to and helps support pregnant men. It also slightly delves into other stories while the main one is going on.

2. The manga is sort of a drama with elements of humor in them. Basically, it's a slice of life comic.

3. Kentaro Hiyama is the main character, but each chapter focuses on another character with Kentaro playing more of a supporting role. Chapter 2 is about Mizuki Kawabata, an office worker who becomes pregnant from her disloyal boyfriend. Chapter 3 is about Tsubasa Utsumi, a teenage boy who becames pregnant, but had an abortion, upsetting his girlfriend. Chapter 4 is about Aki Seto, what lead to her and Kentaro meeting and her reaction to learning about his pregnancy. Chapter 5 is about Noriko Miyaji, a married woman whose husband is pregnant with their second child (she had the first one) and how both of them are dealing with it. Chapter 6 returns to Kentaro and Aki and the birth of their son Kotaro as well as a flash forward to Kotaro as an adult and becoming pregnant with his wife's baby. There is a bonus chapter that returns to the present to wrap up all the stories.

4. The woman on the cover is Mizuki Kawabata. She only appears in the second, sixth and bonus chapters however.