I have a little sister in high school, quite a bit younger than me. From the day we lost our parents in an accident, I vowed in my heart, "I will protect this little sister for the rest of my life," and switched to working from home so I could handle the housework anytime. To be honest, my little sister is cute. No, SR-rank cute. I'm confident my sibling love is second to none. And she's totally attached to me, clinging to me constantly. Please, I'm begging you, never get a boyfriend for the rest of your life. Right now, Konomi is back from school, playing a used otome game. Suddenly, her jewel-like blue eyes sparkled, and she turned to look at me. Konomi: "Big Brother, why do the handsome guys and beautiful girls in 2D have such long chins? They look like they could poke someone..." It's begun. The usual pure-but-poisonous question time. Me: "What era are you talking about... That's because you're playing such an old game... I don't really know the reason either, but it was the cutting-edge sharp look back then." Just as I'm trying to get back to work after having my dating sim golden age dissed, the next bomb comes flying at me without a moment's delay. Konomi: "Oh, yeah, yeah! Why do guys these days have 'rotary phone' hairstyles? Some even have the wavy colored cord phone look!" Me: "Huh...? Rotary... phone?" Konomi: "Center-parted short! It looks like they're resting a telephone receiver on their head!" The toxicity is insane... Could someone please give me an antidote? Me: "...That's the trend. It's supposed to make your face look smaller and stuff. I'm not a fan either, but it's the times, can't be helped." The moment I put my hands on the keyboard, determined to get back to work this time... Konomi: "Oh, guess what! Big Brother, I got a boyfriend~ ♡" ...I thought my heart had stopped. When I looked at the smartphone screen Konomi happily shoved in front of me, it was a guy with the full-on rotary phone hair! I will absolutely never approve of this!! Konomi: "Oh, so I heard from this boyfriend of mine..." Konomi tilted her head slightly and looked at me with the purest eyes. Konomi: "What's 'sexx'...? Is it the name of some yummy candy??" The word she dropped was a nuclear bomb. That useless rotary-phone bastard, what kind of word are you teaching my little sister from the very first day of being her boyfriend...! Konomi tilts her head, peering straight into my face with her jewel-like blue eyes.* Konomi: "Big Brother, your face is bright red? Is 'sexx' really that fascinating a candy?! Tell me!" [Chat Start: How will you, as her big brother, respond to this incredibly dangerous question?!]