This is so far one of the Kairosoft games that required me to play many times and unlock many items. Much time was spent on the game so I thought it would be good to write a short guide on the events that happens in this game so as a player you have a bit of direction going on. Until now I'm sure I've yet to unlock all the possible events generated from clients as some of them have not given me points that are satisfactory in the game to trigger one. The way to please the customer is to cater to the type of food they like and the only hint you get when you click on them is the attribute they would like to see in the dish.
What you can aim to do is to upgrade some dishes to fit this 5 types of clients available which is student, youth, housewives, business man, and tourist. All the different types of attribute of a dish is the key to impress the customers such as tourist will like food that is rare so pick one dish that uses an ingredient that is rare or ingredients that holds a high amount of stars, you will see the points the customer give going up. Just continue reading this post and you'll find the items or recipes that will be unlock when you go ingredient hunting. It only happens every 3 months so pick a place and make sure you have enough employees to go or else you will need 2 rounds to actually find a treasure from the area. My tip for you is the start with the 1st three spots and make sure your restaurant ranks #1 in the first two areas and then move those stores to new areas. Keep the third store at the third spot and the rest of the games continues on with ranking up the 4th and 5th area which is harder to rank up. I have also included what treasure is found in those areas.
*Update*
I was asked by a reader that which dishes has great value and I wanna thank that person because I have not thought of that. It is indeed useful information so that you know which dishes served would bring in more business. Below is a few of dishes that I feel is good to sell because of the stars and pricing.
Gold Ice Cream 9 stars 8,000 yen
Hamburger Steak 7 stars 9,800 yen
Hot Pot 5 stars 9,500 yen
Ikizukuri 9 stars 12,500 yen
Kaiseki Cuisine 9 stars 16,000 yen
Kid's Lunch 9 stars 9,500 yen
Sashimi 6 stars 9,100 yen
Shark Fin Soup 6 stars 9,500 yen
Steak 5 stars 9,200 yen
Topgrade Sushi 9 stars 10,000 yen
Yakiniku 8 stars 15,000 yen
Local woods - 1st treasure - udon dish, yaki onigiri recipe
2nd - fried rice recipe, popular table
3rd - salad recipe, $5000
Steep Hills - 1st - Toast dish, bookshelf
2nd - Spaghetti recipe, Chinese table
3rd - Rice omelette recipe
4th - toy corner
Local Farm - 1st - Pop table
2nd - oak cast set
3rd -
Green Pasture - 1st - ice cream, chinese counter
2nd - Omelette dish
3rd - public phone
4th - Stew recipe, 10k
Fishery - 1st - Sauteed Chicken, standard sofa
2nd - Red table
3rd - vending machine
4th - simple room
Veggie Market - 1st - karage, luxury set
2nd - orange crate
3rd - Bird's nest soup recipe
Fish market - 1st - salad, simple counter
2nd - shumai
3rd - relaxing sofa
4th - salad
5th - bench
Craggy rocks - 1st - grilled fish, chocolate parfait recipe
2nd - western sofa
3rd - Kid's Lunch recipe
4th - Dining sofa
Fisher's House - 1st - Grilled fish dish
2nd - Arcade game
3rd - Steak recipe
4th - White sofa
5th - Takoyaki dish
6th - Japanese set
Contract farmer - 1st - toast dish
2nd - aquarium
3rd - tempura recipe
4th - simple sofa
5th - Ramen dish
6th - Theater set
Top fish market - 1st - Shumai dish
2nd - student set
3rd - meat stir fry recipe
4th - Luxury sofa
5th - Japanese set, tuna bowl dish, 10k hidden stash
Associated Store - 1st - nimono recipe
2nd - Luxury counter
3rd - top-grade sushi recipe
4th - Berry parfait recipe
Dept. Store - 1st - Miso soup dish
2nd - Office set
3rd - Ikizukuri recipe
4th - Corn chowder dish
NY Market - 1st - Toast dish
2nd - Luxury room
3rd - Hamburger dish
4th - Pasta cabonara dish
Kairo Island - 1st - Ice cream dish
2nd - Relaxing Room
3rd - Gratin recipe
4th - Grand piano
5th - Floor Cushion set
6th - Gold kairobot