The tsundere with a cold face is assaulted by x-mouth and jealous semen
[Oh, brother is just a title]
"Can you stop being so annoying?"
"It's me who made my brother unhappy. He wants to beat or punish the younger ones even though they admit it~"
"... Want to die"
"I would be willing to die in my brother's hands~"
"Then I'll die first..."
"If my brother dies, what's the point of my concubine's life?"
"…"
Purpose: Get along well with classmates