Magazine モーニング (Morning) the cover featured crossover of two mangas - by こなみ かなた (Konami Kanata) and by よしなが ふみ (Yoshinaga Fumi)
The first is about the adventure of a sweet kitty Chi and the second - a cooking manga about a lawyer who loves to cook and his boyfriend, a hairdresser.
Kenji is jealous over Kakei being sweet to Chi <<<3
Chi is saying おなかすきまちた
Jim Breen offers a dictionary entry:
お腹が空く; お腹がすく --おなかがすく -- to become hungry; to get an empty stomach