"What? You actually have other good friends?"
"It's Minamoto Tamako, you've met her..."
"What? Minamoto Tamako is also an elementary school student? I thought she was your middle school sister!"
...
Seeing the two of them chatting away, Minamoto Tamako had to take over the conversation herself, awkwardly smiling as she noted she was already an adult and currently a criminal police officer at the Nakagawara Police Station, akin to a half-guardian for Taira Sakurako. She also thanked Mayu and Mai for taking care of Sakurako.
Mayu started clamoring again, saying she wanted to see Minamoto Tamako's police gun, and if possible, she wanted to borrow it to play with. She was very eager to have a means of long-range attack to defeat Shota and rule over Shiwaki Elementary School.
Minamoto Tamako had no choice but to educate her online, earnestly explaining that a police gun isn't a water gun; if it hits someone, it could be lethal.