Haruhiko, Riko, Yukari, Chisa, and Rinka team up to help Kirino save her family's Konosaka Inn from bankruptcy after a new rival, Hotel Moonstone, threatens its survival. They decide that creating high‑class cuisine is the best way to attract customers to the inn. During this culinary endeavor, Yukari, Chisa, and Rinka suddenly develop intense feelings for Haruhiko, and they fiercely compete for his affection. For Haruhiko, this harem brings a mix of heavenly delights and hellish complications.