The Endless etch battle between me and my childhood friend

Onokami Nozomi and Yura Nodoka are childhood friends living in the neighborhood.
I've been playing together since I was little and I like to compete with 2 people.
From grass sumo to running, I've played whatever I can.
They are 2 people who are still playing various games with something, but if you notice, they are good age for each other.
Somehow, to be conscious as a man and woman ......?
In such a situation, 2 people from the flow a little different from usual, to make a naughty game for some reason.
While I was doing so, I noticed each other's feelings and was happy .......
I thought, that was not the case.
In the end, both of them stuck to the game, and they fought over which one made the opponent go first, and which one made the opponent feel better.
In that way, the endless etch battle of 2 people opened the curtain.