In Zenless Zone Zero, there are special coins called HIA Commemorative Coins which you can get from different NPCs or pick up from different locations of the game. These coins can then later be given to Sage in a Barrel for a bunch of rewards.
There are a total of 15 HIA Commemorative Coins that players can find and get in Lumina Square. Locations of these coins and the time of day they spawn in are given in this guide.
Locations of all 15 HIA Commemorative Coins of Lumina Square
Before I get started on the locations, there are a few things that you need to be aware of. Locations of these coins are fixed but the order in which they spawn for you will be random. Other than that, the coins spawn at specific times of day.
One more thing, once you get a coin, you need to fast-travel in and out of that area for the next coin to spawn. To check whether a coin has spawned for you or not, open your in-game time menu. And if you see the line “Sage in a Barrel wants more Commemorative Coins” then it means a coin has spawned in your area.
If you do not see this message, then fast-travel somewhere else and then back to that area.
Morning
There are 4 HIA Commemorative Coins that are available during the Morning time.
HIA Commemorative Coin #1
For this coin, fast-travel to Captain Mewmew and make your way to the old lady standing near a Flower Bed which is marked below. Interact with the Flower Bed and you will get an HIA Commemorative Coin.
HIA Commemorative Coin #2
To get this one, fast-travel to Sage in a Barrel and head in the direction of the arrow marked in the image below.
You will reach a man standing near a bike-stand. Interact with the bike-stand to get this HIA Commemorative Coin.
HIA Commemorative Coin #3
In order to get this coin, fast-travel to Coffee Shop. In the area on the left side of the Coffee Shop, you will find a little girl called Emmie. Talk to her and she will give you a HIA Commemorative Coin.
HIA Commemorative Coin #4
This one is pretty straight forward. Fast-travel to Sage in a Barrel and you will be able to spot an old lady across the road. This old lady is called Granny Leisha and she will give you a HIA Commemorative Coin once you talk to her.
Afternoon
There are 4 HIA Commemorative Coins that can be found during Afternoon.
HIA Commemorative Coin #5
Fast-travel to HIA and get out of the building. Once you do, you will find a girl called Lilac. Talk to her and she will give you a HIA Commemorative Coin.
HIA Commemorative Coin #6
Getting this one is also pretty easy. Fast-travel to Captain Mewmew and you will find a woman called Orlenda standing outside the JC Pharmacy. Talking to her will give you a HIA Commemorative Coin.
HIA Commemorative Coin #7
In the same area as before, there is a Convenience Store. And in front of this convenience store, you will find an Advert. Interact with it to get a HIA Commemorative Coin. The Advert is marked in the image below.
HIA Commemorative Coin #8
This time fast-travel to the Coffee Shop and then make your way to the Amusement Park. You will find a little girl standing near a Broken Toy. Interact with the Broken Toy to get a HIA Commemorative Coin.
Evening
You will find 4 HIA Commemorative Coins during the Evening time of the game.
HIA Commemorative Coin #9
For this coin, make your way to the Bus Stop of Lumina Square. You will find a man there who will be standing near a Manhole Cover. Interact with the Manhole Cover to get a HIA Commemorative Coin.
HIA Commemorative Coin #10
Fast-travel to HIA and once you do, make your way outside. You will find an NPC called Tarshi outside the HIA building as shown below. Talk to him and you will get a HIA Commemorative Coin.
HIA Commemorative Coin #11
To get this one, fast-travel to the Coffee Shop and then go to the Amusement Park. Once you get there, you will find a little boy standing near a Tire. Interact with the Tire to get a HIA Commemorative Coin.
HIA Commemorative Coin #12
This HIA Commemorative Coin is given by a girl called Lynn who will be standing outside the HIA building as you can see in the image below. Talk to her to get the coin.
If Lynn does not spawn there, then it means she is with her friend Ellen. You can find Ellen in the area around Captain Mewmew. Talking to Ellen will free Lynn and after that she should spawn for you outside the HIA building.
Night
There are 3 HIA Commemorative Coins that spawn during the Night time.
HIA Commemorative Coin #13
Fast-travel to HIA and then exit the building. After that, make your way into the alley that is marked in the image below.
In the alley, you will find an old man standing near an Air Conditioner. Interact with the Air Conditioner and you will get a HIA Commemorative Coin.
HIA Commemorative Coin #14
Just like before, make your way to the bike-stand by fast-traveling to the Sage in a Barrel. You will find an NPC there who is called Casey. Talk to him and he will give you a HIA Commemorative Coin.
HIA Commemorative Coin #15
For this coin, fast-travel to HIA and then make your way outside the building. After you do that, you will be able to spot a girl called Ruby. Talk to her to get a HIA Commemorative Coin.
She is also a friend of Ellen and if she does not spawn for you then find Ellen and talk to her.
These were all the 15 HIA Commemorative Coins that are found in Lumina Square. You can now go to Sage in a Barrel and exchange them to get other items. If you are interested in getting all Captain Mewmew’s Lumina Square Medals (page 1), then check out our detailed guide on it!