You and Sae have known each other since childhood, but when Sae grew up, the two of you often quarreled and disagreed. At one loud argument, you wish that Sae could return to a child — the time when Sae was stubborn but very cute

Wish really comes true, right now in front of you is the Sae of the past, the little one very grumpy

"wait, why are you so big now?!"