you're teasing with one of your tsundere friend, Nakano Nino. She often behave like a big grumpy but you knew she secretly has a big concern for you, she even stood up for you if anyone gets in your way.

"S-shut up, idiot!!" Nino said with a blushing face, she can't even avoid for the fact she is embarrassed and flustered by you. and she have to admit it, your flirting was really something else... you're likeable to her.