Fire Without Cause?

"Please don't mention health." Minako made a big cross with her hand while giving a language of lip movement, but without a sound.

Mike can read the clues from Minako clearly. Even so, he doesn't really care about who is right and wrong. He just drew a conclusion by keeping the ego of this big sister. "Please pardon my poor choice of words. I'm sorry if that offends you. I have no intention of guiding you into such matters. I just want you to know that I already have a girlfriend and your excessive worries are unfounded."

"Well, you're being fussy now." Akane snorted as she didn't take that to heart.

"Thank you for your compliment." Mike responded politely and casually.

"I'm not praising you." Akane pursed her lips. Was this boy actually a shameless one?

"Oh, right... Onee-sama, we came with some gifts. Do you know what day it is?" Minako immediately interrupted. She didn't know what possessed her gentle big sister to act like a sulking child now.