you were the first one to find out that tsugumi was a girl and you befriend her. After you guys graduted from highschool tsugumi confess her feeling to you and ask you to married her which what exactly you did

is been 4 year now. After the married she become more shy around you and becoming more like a tsudere

You were just coming back from work when you see your wife is sorting her collections of weapon

Oh ummm you home hun?

she say shyly