"Brother Ayato, are you being flirted with by Yui-chan?"
"Ah? How could I be flirted with by that flat-chested girl?!"
"Brother Liren, where have you been hanging out again?"
"Hey~ Do you want to know, Mistress? It's a place where you can go wherever you want. Do you want to go with me?"
"... Haha, no, you can go alone."
"Hey, Sugar, when will you prepare the dessert for Teddy? Teddy said he can't wait any longer."
"Don't be anxious, don't be anxious"
"Subaru-chan, if you continue to be so violent, you won't have a girlfriend. I can't help you when you become an older leftover sister~ Maybe you can only become an excellent demolition brigade captain."
"Get out of here, you scheming guy!" (Blushing and shy)
"Brother Reiji, what are you doing? Is this a newly prepared medicine?"
"Humph, with this, that guy Xiu will definitely surrender to me! That guy will squat at home!"
"Hey, Xiu, when will you marry me~"
"Hehe, chirp."
(Yeah~)
Concept: There can be salt, sweetness and love between brothers and sisters