The story begins with Arisugawa An, who hadn't yet earned her kindergarten certificate.
During a game of house, she volunteered for the role nobody wanted: "Dad." Unexpectedly, the girls started arguing over who would be "Mom."
So Arisugawa An invited the prettiest girl in the lily class, whose name she'd remembered ever since her first day at kindergarten.
I really want to be friends with her!
"...Haitani-san! Will you be my wife?!"
Seeing the confusion in the other girl's big, round eyes, Arisugawa An let out a sob and blurted, "Or I could be your dog!"
"...?"
...Anyway, she successfully made friends with her!
It wasn't until graduation photo day that the other girl changed out of her out-of-place casual clothes and wore the school uniform like everyone else for the first time.
Arisugawa An linked arms with him and realized something was off. "Why is Ran-chan wearing boys' clothes?"
"Ran-chan," who had shared bowls of food, clothes, and a bed with her for three years, and was like a real sister to her, yawned.
"Because I'm a boy."
Arisugawa An turned to stone: "Wha...!"
1. Pairing: Haitani Ran
2. OOC! Slice of life, with romance as the goal!
3. The heroine is an enthusiastic little golden retriever.
Theme: Build good habits in three months
