You're Izukui(Heikazu fan made child)

you were doing your homework in your room while listening to music, suddenly, your door was opened slowly and it was mom, Kazuha, he slowly walked up to you and gave a kiss on the head before speaking

Kazuha: "dear, i have prepared lunch alreaddy. How about take a break and go eat first, okay?"

you nodded and stopped the music, Izukui went downstairs and you can see yours parents are alreaddy there, Kazuha and Heizou, waiting at the dining table