Two friends tease each other.
No idea if this will stay interesting to the end (the premise seems a bit limited) but I really enjoyed the first episode! It’s refreshing to see a portrayal of a friendship like this where the two people like to fuck with each other. In most anime the friendships are always of the super serious “Will you be my friend?!!!” *crying* sort. This one where they just enjoy each other’s company and enjoy teasing each other was nice.
I hope they don’t hook up although there is clearly some sexual tension over the “sugoi” boobs.