This specifically comes from the May 25, 2020 installment of Love Live! School Idol Festival All Stars' official Daily Theater, So Pets Resemble Their Owners?

Translation by SIFAS Daily Theatre on Twitter – reproduced below:

• Ayumu – Hehe, you're so cute. What a good dog...Ah!
• Chika – Ahh! Shiitake! Don't do that!
• Ayumu – I'm all right, Chika. Ahaha, hey now, Shiitake, that tickles...
• Chika – Won't your clothes get dirty? You okay?
• Ayumu – I'm completely fine! But I'm jealous of you, Chika, living with such a cutie. You're so lucky~ I want one too.
• Chika – Hehehe, feel free to come over and pet Shiitake anytime you want!
• Ayumu – Oh, thank you. So, I've heard people say that pets resemble their owners, and it's really true, huh? Both you and Shiitake are so full of energy.
• Chika – They resemble their owners...? Ah!! So that's why!!
• Ayumu – Why what?
• Chika – Well, Shiitake's always cozying up to every single friend of mine, barking happily all the while. Because I adore you all, Shiitake does too...so that's what it is, I get it now.