So does this OVA confirm that Maki is a closet lesbian?
Closet has been broken a long time ago.
And they "finally" killed Nico as her ship with the OVA.
The sequel to the story is Nico taking care of Maki's time travelling 10 year old self while waiting for 16 year old Maki to return from the past.
As time goes on, Loli Maki develops a weird crush on her babysitter.
And Nico falls in love with her 16 year old kouhai.
Confused by her feelings for two very different personalities of the same people, Nico tries to hide it no matter how much it pains her.
Eventually one day, she says three words to her kouhai.
"I love you"